The water resistance bit is very wrong. The dynamic pressure formula is P = ½ r v² . Let's say you are a superhero and manage to move 36kph (10 meter per second) and if we take salt water (worst case scenario) : P = 0.5 * 1023 * 10 * 10 = 51 150 Pa ( 0,5048 ATM). You can't make your arm move fast enough to create a non negligeable pressure.
This is correct. The myth regarding WR is that a human can create enough dynamic pressure to significantly change the overall pressure. That is not true. If your watch is WR to 30m, you can swim your absolute hardest at a 30m depth and it isn't really going to matter, let alone at the surface.
Yep. While I still wouldn’t take a 30m water resistant watch swimming, it’s not because the dynamic pressure is going to surpass the static pressure. Unfortunate that Jenni is repeating this myth on a video supposedly myth-busting.
@@stephens2r338 It's the worst moment when the watch enter the water. If you jump from high, then you can create a surpression at the impact. 10 atm WR is better in that case (10 is enough because if you generate an impact that can create a surpression more than 10 atm then you hand will be in a very bad shape and most likely the springbars won't take it anyway)
Regarding "Swiss Made", the Swiss labor costs are substantially higher than those in China. So the watch (sans movement) can be 90% Chinese-made but get the Swiss Made label because the nominal Swiss part costs more than 60% of the total. This seems like the biggest scam in watchmaking.
Myth -- The elapsed time bezel on a diver's watch is used to gauge how much air you have in your tank. Elapsed time is not a reliable indicator of air consumption. The rate that air is consumed on a dive varies from person to person and by the level of activity. The elapsed time bezel is intended to indicate your bottom time, or how long you have been subjected to pressure based on the maximum depth of the dive, which determines whether and for how long you need to decompress when ascending.
That’s correct but I never ever heard that a watch bezel could be used to correlate with remaining compressed air in the tanks and this would be utter stupidity given we have a pressure gauge for that. Rightly the rotating bezel on a dive watch is used to determine bottom time so that the decompression stops can be done at the correct depths and for the correct durations…
some Puerto Rican guy i met fishing was using the bezel to time when the beach bar closed & when the liquor store closed (two different times). bezels are good for what YOU need them for
And don't forget how important the depth factor is. Air consumption will double or triple when diving to 2 or 3 atmospheres (60 ft./90 ft.). You better be watching both your dive computer, AND your pressure gauge, or you might have to buddy-breath to make it through your decompression stops. Recreational diving is 100 feet or less, so we don't have to think beyond that for most people.. 🙂
Nice work clearing those up. Had forgotten the water pressure equation from engineering studies in college. Of course the current joke is ‘99.9% of luxury watches never come in contact with any fluid - except champagne!’
This is why you are the best! Loved this video Jenni! Particularly loved all the chat around in-house movements vs. off the shelf. Everyone went nuts for in-house the past few years, but you are absolutely right! In-house doesn't always = better. Nothing wrong with a tried & true ETA, miyota, etc.!
The term “in-house” has no definition and is overused. A company can only have a 20% stake in a movement manufacturer and call it an in-house movement. So lame!
What gets up my nose is not that makers pretend that a movement is in-house because they have essentially modified an ebauche; that's pretty much been the practice for 100 years. What gets me is that watch journalists (and many vloggers) play along, reporting (for instance) modified ETA movements as in-house Longines or Omega.
Hi Jenni, long time watcher and fan, keep up the great content!! I see comments about water resistance thrown around a lot in the watch community so I thought I'd put some numbers to your comments (which are absolutely correct in principle) for everyone's benefit. Using the formula you correctly quoted, which is for a STATIC object (i.e. no velocity within the submersed fluid), assuming our watch is underwater (and therefore density is ~1000kg/m^3): Depth rating of 30m (or 3 atm) = 1000*9.81*30 = 294.3 kPa. This is how much pressure the seals in the watch are "rated" for. Now assuming we are swimming underwater in a pool, say 2m deep, lets also assume that we are moving our arms at 5m/s (~11mph or 18kph, so quite fast), the pressure experience by the watch seals will be: depth contribution = 1000*9.81*2 = 19.6 kPa (also referred to as static head) velocity contribution = 0.5*1000*5^2 = 12.5kPa (referred to this as dynamic pressure or dynamic head) Total = 32.1kPa, or about the equivalent of being 3.2m of water. So our movement in the fluid equates to the equivalent of an extra ~1.2m in depth if the watch were static. Note that the velocity is a squared term, so increases rapidly with velocity. E.g. if you were to fall off a jetski doing 40mph, this would contribute 144.5kPa (0.5*1000*17^2), which is an extra ~15m equivalent of depth. Hopefully that's useful for people to get a feel for how much movement of a watch within a fluid actually affects the pressure it experiences.
A small correction… depth rating 30m corresponds to appr 3 atm, not 30. 30atm is around 300m. Almost any watch has a rating of around 100m or more (at least a watch you wear while swimming), thereby speed doesn’t really matter.
I’m not even finished watching & I can say that this is my favorite video you’ve ever done. I’m enthralled. I liked this video not only because I genuinely love it, but so I can go back & watch it again later. Thank you for the work & research.
I bought a fake Rolex in Mexico once. At the time a fake Rolex there was going for a non-haggled list of $30 US. It has a quartz movement and the gold plating wears off within a month or so. But the one I bought was a stainless steel GMT Master II with a true Swiss Movement. I paid $150 US for it in Tijuana down Revolution some. I sold it to a friend that owned a real one that looked just like it. His Jeweler asked him to bring it in for the challenge of comparing fun. Everyone LOVED it! It's worth it's own value. The jeweler wanted it! Fakes can be fun and they DO have their own value - but never pass it off as real...people have more respect for you if you tell them up front "it's fake." - especially if they already KNOW it's a fake. (usually that will be the REASON they bring it up to you - a test.) Great conversation starter of a naughty trip into Tijuana and the Midnight Express slipping through customs. The switchblade knives and Cuban cigars and the fake Rolex watches. Just TOO fun! Then someone said to me of my trips there and back "You know, there's better paying stuff you could be smuggling and the jail time is the same." I stopped visiting Mexico.
I've seen an engineer demonstrate that the instantaneous pressure peaks due to typical human motion in water were still negligible compared to the nominal hydrostatic rating of a watch. I haven't bothered to validate that. I stay on the safe side and just assume anything except a diver is best removed before swimming. And I know that temperature vastly changes a pressure rating - so keep any watch out of your hot shower
I think you're referring to a video made by Marc at Long Island Watch. It is somewhat misleading. Yes, when totally immersed you aren't going to generate enough dynamic pressure to have a significant effect. But when splashing or actively swimming the crawl at the surface or diving or jumping into the water you well can generate enough force to impact the water resistance of the watch. Watches that don't have screw down crowns are particularly affected.
@@bullnose01 my 50m rated Timex with a push crown was my only watch for nearly 15 years. I went in the water with it literally thousands of times. Diving boards , kayaking in gale force winds, everything short of actual scuba diving. It never showed any sign of leaking. I don't think I've ever been more than 5 meters deep with it, so 10x safety factor!
30m WR = no water resistance at all. Drops at the most. Washing hands and light rain 50m WR = shower-proof 100m WR = swimming, snorkeling 200+m WR = diving 500+m WR = saturation diving
@@ChefPelle Vostok 20 metre water resistance = won't let water in at 20 metres depth, 200 metres water resistance means. Stops working at 800 metres pressure and implodes at 1200 metres.
So glad to hear that I don't have to worry about over winding my 5000bar 137 jewel Swish made Tuder. One really great feature of this watch is that it is absolutely spot-on accurate -- twice each day!
My Casio runs on solar power (no battery and doesn't need winding) and it sets itself every night from the national atomic clock. Even without light it run for 6 months and without the time signal is accurate within 15 seconds per month. I never have to correct the date for months with less than 31 days or for leap year. When Rolex makes a watch that does all that, I'll buy it.
@Jark Fiz I suppose an EMP could kill an electronic watch. It has gone through x-ray machines at airports many times without damage. I have a Swiss made Invicta, a rather nice homage to a Rolex Submariner with a two-tone band and blue face. It has a crystal on the back so one can see the movement. Very nicely made.
Hydrostatic pressure equation has nothing to do with dynamic pressure and water flow, which in this case is caused due to swimming. Hence what you need to consider is Bernoulli's Principle, which states that: As the speed of a fluid (liquid or gas) increases, the lower the pressure it exerts. In this case water moves relative to the swimmer. So in theory when someone swimms with their watch on (I don't understand why some people do that...) , the watch receives lower pressure than if they were just stand and float in the water.
I watched some pressure testing that Hydraulic Press channel did. They tested a few cheap watches and some mid range ones. The testing showed all the watches held up to double their depth rating at least. The main point of fail was the case back. They would press inward and stop the hands. Lower the pressure and the watch would go again. Pushing several times past would eventually crack the crystal.
it actually is, they practically the only swiss company that makes everything in house and still retains value better. reliability, heritage, value, 100% in house, clout, literally has everything u want from a mechanical watch
@@jojotwice8918 I don’t think they are the “only” Swiss company that did everything in house. Anyway the lack of hand finished movements in Rolex already put them one level behind many high end watchmaking companies.
As you know, a watch jewel is called a Stein or stone in German, so no implication that it makes the watch more precious as the word "jewel" might, at least in German. I would say, however, that the number of jewels corresponds to the number of moving parts that need to be protected, and hence correlates to the watch's complexity.
@@Mgoblagulkablong Diamonds, Rubies, Sapphires etc. Colloquially are referred to as stones, Historically they are interchangeable and mean the same thing.
@@Mgoblagulkablong There is never only one meaning or single word equivalent when translating a word. It always relates to context. The original comment most likely was written by a German native speaker, and being German myself I can confirm that in the watchmaking context "jewel" is translated as "Stein" in German, so the comment is absolutely correct. In German the word "Juwel" is mostly used in a more lyrical sense such as "this old building is a jewel of this city" and the plural "Juwelen" mostly refers to pieces of jewelery like necklaces and bracelets decorated with gems like rubies or diamonds.
Thank you, Jenni, for finally explaining to me how artificial rubies are created. I’ve sometimes wondered, then when I went to look it up, always forgot what I was doing and got stuck on Rolex videos.
The Swiss made pricing determinants are open to abuse due to local pricing manipulation. 60% of the cost of a set of components can be a single deliberately overpriced screw, making the entire watch “Swiss made”. Some VERY well known watches are guilty of doing this…..
"It is mythological to take turns, it is also mythological to create turns, it brings the turns into its pristine state, the same time it is founded and established as myth and the logical"
The threshold for the 'Swiss Made' label has become so lax that Patek decided to come up with their own benchmark. If I remember correctly, Patek no longer puts that 'Swiss Made' label on their watches as their local-input/content requirements for their watches have far surpassed those 50% and 60% thresholds.
I just found your channel. I usually watch some dudes telling me what watches are cool. And now I see a beautiful lady talking professionally about watches. Im in love!!!!
Sorry Jenni, but the “debunking” of Myth #2 might as well be the actual myth. There is no way waiving your arms in a pool would lead to any significant increase in dynamic pressure. Even if diving from 10m (32ft), the dynamic pressure on your watch when it hits the surface is only 1 bar. Great video, and keep’em coming!
I came to say the same thing. Her math formula is right, but there's no way you can move your arms around enough to make a meaningful adjustment to the pressure.
Thank you. Implying that the dynamic pressure created from the movement of your arms will be so great it would negatively impact the watch is insane. This is the stupidest myth and it drives me absolutely crazy because it can be debunked so easily.
@@squigglyphrank9348 Shower should not be an issue either. You would be in the ICU with severe burns before it got hot enough to damage/affect the integrity of the watch. I don't see the point in wearing a watch in a shower anyway though.
On your comments about over winding of automatic watches. Automatic watches cannot be overwhelmed as the mainspring inside actually slides against the inside wall of the barrel. These main Springs are not permanently a fixed to the barrel wall and so continuing to wind the watch simply causes the main spring to slide more. So, you are 100% incorrect in your description of over winding of automatic watches. This is also true for modern manual wind watches as well, again, to prevent the breaking of the mainspring within the barrel. Love your channel and love your reviews, but this time a correction is needed.
Pressure equals rho x g x h part explained it correctly but the moving arm part is debatable. It has practically no effect on the overall pressure in fact. Long Island Watches confirmed it. The dynamic energy that will add to the hydrostatic pressure energy dictated by the velocity. But the velocity of watch is significantly lower than the hydrostatic pressure term. If you want to achieve to a point where the dynamic pressure come in effect, you have to swim as fast as motor boats. Plus if you swim, the hydrostatic pressure will almost be zero ( swimming at sea level) Also 30 atm means they test it with a pressure machine (either air or water) at those pressures. It can go down to (let’s say) 30m below sea below which is 3atm. But those watch makers don’t want to risk it as they test brand new watches right out of their production line which is the best condition of the watch for its entire life and customers always do what manufacturers don’t expect at all. Diver’s xxx m (ISO ratings) is a different story. It can actually bear more pressure than it says on the dial, and the manufacturer has to test every single watch they have that priting on the dial
30m WR = no water resistance at all. Drops at the most. Washing hands and light rain 50m WR = shower-proof 100m WR = swimming, snorkeling 200+m WR = diving 500+m WR = saturation diving
Another myth is the value placed on power reserve duration. A watch will loose accuracy long before it stops ticking, and whilst a longer power reserve does improve its accuracy duration. It is only one of many methods to extend accuracy duration
Great video Jenni. Imagine when you water ski, beginning to be towed by the boat, with your watch under water... the pressure building up is pretty high, and you are 30cm under water 😂
The water rating/pressure is itself a myth. Hodinkee have an article showing you’d have to swim at superhuman speed for water pressure to make any difference. 100m is 100m. Rolex for example tests all their watches to 125% of stated depth
30m WR = no water resistance at all. Drops at the most. Washing hands and light rain 50m WR = shower-proof 100m WR = swimming, snorkeling 200+m WR = diving 500+m WR = saturation diving
Very interesting video! I once got some water into a 10 ATM watch during sporty swimming (maximum depth 2 meter). So I am definitely more cautious now....
Jenni, I respect and follow your channel since the start, but myth numbers two is not explained correctly. This is an extract from a watchuseek forum, and basically moving your hands cannot change the pressure more than 1%, so it has no effect! “This mystery lead me to seek out the answer and learn more about water resistance and the effects of dynamic pressure specifically. I did found some important pieces to the puzzle here in this forum from older forum posts but also from Wikipedia and also some Swedish scientists that I had enquired about this mather. What I did found out shattered the dynamic pressure theory to pieces. It simply was nothing more then a lie turned into an urban legend and myth. Apparently pressure can only be applied to an object as the result of added mass/weight that is applied to the object(in this case added depth with an increased weight of the water pillar above you) in question, or as a result of expansion or due to electro magnetism, another possible source of pressure is some external forcing preventing expansion or inversion. Another source is gravitational pull due to accceleration or decceleration but that reason is somewhat tied in to reason number one the one about added mass. So what kind of forces can a swimmer/diver apply to his/hers watch? first we have the depth ofcourse. If we use a watch similar in size to a Raysman. Lets say we are at 100 meter depth. The size of the watch is about 5cmX5cm thats 25cm2 in surface area. 1m is 100 cm so 100m is 10.000cm 10.000X25= 250.000 Cm2 of water above the watch that is pressuring against it. The weight of that water is 1000.000/250.000= 250Kg(550 ibs) of pressure against the watch at that deptht. This is known as the hydrostatic pressure. The diver(staying at the same depth) can only change that pressure against his watch in 2 ways either by moving his arms up or down but the maximum reach of ones arms is very limited usually not more then perhaps 120cm(4') or so.... that is only a change in pressure of 0.12 bars or 3Kg(6.7ibs) of pressure, very little difference not much more then 1% compared to the rest of the pressure at that given depth. Second way to increase pressure at the watch is trough speed/acceleration. Either by swimming or by moving our arms up and down. The maximum speed we can move our arms in free air is often not more then 3-6 feet per second and it moves even slower under water. And when it comes to Swim speed even an Olympic swimmer usually cant swim any faster then 6-7 feet per second. If we add the maximum output of that we get up to 10 feet or 3 meters of acceleration per second which is the equvivalant of about 10Km/h or 6.25 mph. That aint very much force/pressure in water. Someone smart here at the forum(CycloneFever) calculated this and I quote: "Without repeating all the calculations here (they involve denominators and the greek alphabet and are PITA to type out), at a depth of 330ft(100 m) and moving your arm at 3 ft/sec, the dynamic pressure is in the order of magnitude of 0.14 feet of head or 0.04% of the depth. Even assuming you could move your arm at 20 ft/sec (14 mph!) the dynamic pressure is only about 6.2 feet of additional depth (
C = 1.35 -1.45 coefficient of resistance for disk, Y (gamma) = 1025 kg/m3 - density of sea water, V = 3.16 m/s - speed of arm, R = 0.02m - radius of watch glass, S = R^2*pi= 0.001256 m2 - area of watch glass, then: F = (C*Y*V^2*S)/2 = 8 - 9 N which is roughly 800-900 gram force. And you don't need Swedish and especially British scientists 🤣😅🤣
@@kolobokkolobol8774 lol 3.16 m/s... have you tried moving your arm, especially under water? no way you can achieve these velocities! also we must talk about pressures, not forces only. in any case this force is so small it will not affect the pressure exerted by the water above you in a specifi depth!
@@Dr_LK I just used roughly same speed which was given in initial comment 10 km/h = 2.77 m/s, I cheated with 3.16 to make sqaure of it 10 sharp 😁 But for sure those speeds are close to unreal, I totally agree with you
Thank you. Great informational video. I DO think the Swiss should bring back the true meaning of being, "Swiss Made" in watches, or it could become a somewhat meaningless term. Or maybe it already has, and most people don't realize it, even as it spreads too far across the board as it is. Thanks again.
You must be a newbie. Do you really believe the 1887 has been the only "in house" movement that wasn't really in house? Or you're just a sheep that hate whatever the you tubers tell you to hate. Be a free thinker.
@@richarddawson5836 it's ok to let your insecurities out. Don't be afraid to express yourself. I don't know how it feels to only ever feel of myself worth in making juvenile RUclips comments, but you have my sympathy.
Hi Jenni, as you mentioned inhouse movements, i remembered a story of mine, not long ago, im a HUgE fan of tudor, and i had so many over the yrs, and tried them with the eta movement and the in house, i never had a problem, i had a blackbay eta red then upgraded to the inhouse movement thicker case same watch almost, as my main everyday watch, along side a bought the pelagos black inhouse, then updated to the blue pelagos when it came out, after 5 yrs of daily using the red bb, sold it and got the white panda chrono. It was a unicorn to me ! Its a diver as well as a speedy ! Loved it in everyway ! BUT, after less than a month wearing it, i came to realize that between the 6 and the 11 the seconds hand start acting wobbly and moves in a funny matter (i have videos) so i went online searched everywhere and i cane along another videos showing another person with the same problem. So i ran to the dealer here in kuwait, (the most expensive dealer in the world) and showed them the videos and the how it is live, they took to test it for 2 days then got back to me saying that yes there is a manufacture default thus will send the watch to Switzerland to replace the movement ! For free ! I was like hey hold on ! I bought it new from u, and now i have to go through 3 months without my watch bcus u wanna replace my entire movement ? Wth ? How is that even possible?! Having said this i had my name on the list twice for the reversed panda same watch, they called me twice, and i cancelled i dont wanna buy it anymore due to a dealer that ruined tudor image in my head ! And until today a year later im still wearing it, and that wobblyness keeps coming back from time to time !
LOL you guys are so funny. Jenni knows as much about in house movements as she does the Superbowl. Her ol' man writes all this BS and she reads it out.
My Casio runs on solar power (no battery and doesn't need winding) and it sets itself every night from the national atomic clock. Even without light it will run for 6 months and without the time signal is still accurate within 15 seconds per month. I never have to correct the date for months with less than 31 days or for leap year. When Rolex makes a watch that does all that, I'll buy it.
How many of the 30 companies lobbying for foreign content in “Swiss” watches are under the Swatch group’s umbrella I wonder 🤔. Thanks Jenni as always, your channel is one of the most enjoyable in this genre. Danke sehr!
I have to question how much of an Omega is really made in Switzerland. I have seen receipts for replacement bracelets with “made in China” on them….. Not to say Chinese made components are not good - some are very good, but they need to be honest……
I know with Seiko all of their cheap solar and quartz watches are now Made in Malaysia instead of Japan. That is the sad reality of things. All of these watch companies are looking for ways to keep the costs down.
“It’s a myth that the depth rating is an accurate indication of how deep you can go.” Are we sure this is true? Is it possible that THIS is the myth? Studies show that the dynamic effects of moving the watch through the water are practically negligible. Has anyone actually proven that a 30m watch can’t survive routine vigorous swimming, or do we all just keep repeating this because we’ve heard it so many times?
Nice debunking! Unfortunately the "made in ___" are mostly used as marketing, in Italy it happens the same (although I don't have a quote from the law) as long as the final assembly of a product occurs here, it can be labeled as Made in Italy
Sehr informativ. Ich würde nie mit einer Uhr schwimmen gehen, die weniger als 10 bar /100 m wasserdicht ist. Und bei 3 bar würde ich sie sogar vor dem Händewaschen absehen; geschweige denn sie beim Spülen oder Arbeiten mit Wasser oder Wasserdruck tragen.
Thank you for such an informative video! I feel like some of the points could be clarified but I definitely understood what you meant. And thanks for the very thorough definition of Swiss Made. I love listening to you talk and am subscribed so I don't miss out!
Thank you clearing this up 😊 You are such a darling.I love your soft well spoken way of explaining what these features really mean. Thank you for sharing Jenni I don’t want to be waisting my hard earned money’s on a myth. Thank you to my good friend @Britt Pearce for dropping in the comments. I can’t wait for another Britt/Jenni video (The Dynamite Duo) ❤💥💥🙏
After 2 months research I realized there is no point buying Swiss unless someone has a need for a certain must have brand and is willing to pay extra to get it. I understand some people have the need for status symbols and this must be the biggest sales driver for legacy brands. For those who don't care for brands and willing to build their own watch there are lot of choices when it comes to case styles, bezels, dials and movements and the savings are considerable. The best part is that you know your watch, because you put it together.
Hi Jenni, love your videos, thank you again! I have a 15 years old Tag Heur Monza which has 30m WR, and I decided to give it a wash under the tap, and I got water into it! So now I know that 30m WR DOESN'T mean it is water proof.... learnt it the hard way :)
30meters = 3atm = 3 bar , at least here in my country the water coming from the sink fully open is 6bar so even a 50meter watch wound not feel comfortable.
If your watch was not serviced in 15 years then the chance are the seals had perished hence the water ingress. Best to bring the watch to a watchmaker who will service it and replace all seals.
I recently saw a video in which a $30.00 Casio was tested way beyond its bar rating and didn't break until that pressure exceeded 200 meters,even then the watch still worked but the LCD was damaged.Incredible!!The companies that lobbied against the increase in the Swiss standard,are most likely any of the Swatch held companies.........................................
30m WR = no water resistance at all. Drops at the most. Washing hands and light rain 50m WR = shower-proof 100m WR = swimming, snorkeling 200+m WR = diving 500+m WR = saturation diving
Thanks for sharing! Love your perspective on these myths. I'm really curious about this "Swiss Made" stuff... makes us think big hitters are truly involved. Appreciate you putting this together.
This!!! It frustrates me that people keep pushing the water resistance myth when they should be discussing the trustworthiness of the manufacturer instead!
The general industry standard is as follows 30m WR = no water resistance at all. Drops at the most. Washing hands and light rain 50m WR = shower-proof 100m WR = swimming, snorkeling 200+m WR = diving 500+m WR = saturation diving
Myth 8 - Your watch is valuable and almost eternal. Just wait until you get a service check for $800 claiming that they had to replace nearly all the parts :) Well at least if you divide it by two you get a rough idea how much it cost to make.
Everyone loves the luxury life the problems most people have about buying luxuries are having enough money to buy one, but that won't matter if you have a stable financial life.
I agree with you and I believe that the secret to financial stability is having the right investment ideas to enable you earn more money, I don't know who agrees with me but either way I recommend either real estate or crypto and stocks.
Yeah!! It would be more beneficial and yield more profit if you actually trade on cryptocurrency I've been trading since the dip, I've made so much profit trading
The Swiss should be labeled anything not 100% manufactured and assembled in Switzerland as "Assembled in Switzerland from domestic AND imported parts". I see a lot of products labeled "Assembled in USA. (or Canada) from domestic and imported parts.
The good folks at Pagani have assured me their crystals are indestructible, their in-house 92 jewel movements are superior, and I can swim with their Submariner copy to the bottom of the ocean.
I don't think you've ever read a Pagani listing. They barely mention the jewel count as their business model relies on bulk purchase of generic japanese movements.
When I was a kid, my grandfather was so proud of the 17 jewels in his watch. Seventeen jewels! I think that if 100 metres doesn't mean 100 metres, we need to stop using metres and put the tolerance down in atmospheres.
it does mean "100 meters", but in an ideal water situation: e.g. if it is dipped veery slowly, nor shaken, so that it creates exactly the same pressure "as if" at 100 meters. That's why she gives swimming as an example--even if you're at half-a-meter, .. the pressure is actually more than that.
I think folks are too panicky about this question. Everyone here seems to think they flail their arms at supersonic speed at 100m depth while in reality most people plod along at the surface between 0-5m depth if they even submerge themselves. Those that swim fast do it so the hand and wrist hit the water at the most efficient angle, thus causing little drag. It does nothing to a watch. I've been swimming with watches for 25 years now, and the only time it went wrong was with a new Seiko 200m driver's. Because a gasket was damaged. Seiko fixed that under warranty, never had a problem again. Aside from that I never had anything with 50m WR and up leak, and this includes the shower, bathing and even Finnish saunas. I think watch manufacturers would do better to indicate you should test the water resistance every two years and replace your gaskets when needed. Good maintenance is much more important than the final rating.
30m WR = no water resistance at all. Drops at the most. Washing hands and light rain 50m WR = shower-proof 100m WR = swimming, snorkeling 200+m WR = diving 500+m WR = saturation diving
A jeweler told me years ago that a 17 jeweled movement was really fully jeweled and the extra jewels didn't really count. 17 was a very popular number back when mechanical watches were used by everyone.
Really liked the content of this video- well done! The sound quality felt a little distracting as it sounded like you were in an empty room with a very slight, but noticeable echo. Regardless, I look forward to checking out your other videos.
It's goofy, but 3atm is usually described as splash resistant. Also, I've seen the math on pressure increase due to movement in water, and it turns out to very negligible for watches, since the exposed sealed areas are so small. I hate disagreeing with my fantasy gf. At least the make-up sex is really good.
When servicing a lot of well known 30m WR watches, the main part is cleaning out all the dust. They're not even dust resistant. A Breitling Navitimer (3ATM) is toast if going into a pool. So was most of the Omega Speedmasters after their moon missions, landing at sea
About fake watches, my gun dealer bought a Panerai from a friend and wore it for over a year, considered selling it to me, then, found out it was a fake when his watch-maker took it apart when there was a clasp issue. The watch-maker said he suspected it was fake because of the feel of the crown, but wasn't certain until he had taken the back off. The movement exhibited high quality workmanship, it just wasn't a genuine Panerai. Lesson is, if even a professional can be fooled by it without an in-depth examination........
It's why the SAR Rescue-Timer is 1,000m water resistant. Not because someone is going that deep, but because water pressure is high when you're flailing around in rough seas and changing depth quickly.
3 bar water resistance is perfectly fine for going swimming. I've done it all my life with Swatch watches (which are 3 bar water resistant), even some light diving, and never had the slightest issue with them.
30m WR = no water resistance at all. Drops at the most. Washing hands and light rain 50m WR = shower-proof 100m WR = swimming, snorkeling 200+m WR = diving 500+m WR = saturation diving
I'm sorry but she is completely wrong. She is using the wrong formula because she considers static pressure instead of dynamic. As water speed increases due to swimming, water pressure decreases. It's basic fluid mechanics.
@@dimitriostsiganis I studied business, not physics, so I don’t know anything about fluid dynamics, but I have the general idea now and that’s all I need.
@@braydencromar That's the thing you don't. Because what she says is fundamentally wrong. Since you mentioned studies, I studied civil engineering that is why I'm telling you that you shouldn't consider what she is saying about water pressure. And it's not to brag or anything like that. Here is how water depth pressure (static) works: At water level it is 1 atm. Every 10 m down pressure increases by 1 atm (or about 1 bar). So 30 m is 3 atm, 300 m is 30 atm and so on. But when you swim (at water level 1 atm remember) water is moving around you and your watch. When any fluid moves AROUND any object, its pressure it exerts drops (creates negative pressure), nothing more to remember. So actually pressure around the watch is decreasing slightly. It's negligible actually because humans dont's swim that fast it won't pop the crystal out, but in principle going insanely fast could do it.
Possibly already mentioned, but I've not seen it: The pressure at sea level is already 1 ATM, so at 10m is 2 ATM and at 20m is 3 ATM. So, a 3 ATM watch is rated to 20m static pressure. This is scuba diving physics 101, and most watch advertisements get it wrong.
@@IDKline No, I'm talking about 10m out of 30m in the case of a 3ATM watch, which is what was discussed and the example I used. So, in this case, claiming 30m water resistance is over-egging the pudding by 50%. Hardly insignificant. Thank you for your contribution.
Come on, most buyers of expensive watches don't swim or dive. They just want a watch that is waterproof when washing their hands or rinsing the sweat off the watch...
Hey Jenni. What a nice video again.. :) Would love to see more insights-videos from the watchmaker industrie..:) May I ask where did you get the information that 30 anonymous companies are lobbying against the swiss made label? Best wishes
fakes are so common today in all things, that for the past few years, i only buy from an authorized dealer or direct from the company. i'd go as far as to say that if you just got some random item from amazon or ebay today, you've likely bought a fake
The water resistance bit is very wrong. The dynamic pressure formula is P = ½ r v² . Let's say you are a superhero and manage to move 36kph (10 meter per second) and if we take salt water (worst case scenario) : P = 0.5 * 1023 * 10 * 10 = 51 150 Pa ( 0,5048 ATM). You can't make your arm move fast enough to create a non negligeable pressure.
This is correct. The myth regarding WR is that a human can create enough dynamic pressure to significantly change the overall pressure. That is not true. If your watch is WR to 30m, you can swim your absolute hardest at a 30m depth and it isn't really going to matter, let alone at the surface.
Yep. While I still wouldn’t take a 30m water resistant watch swimming, it’s not because the dynamic pressure is going to surpass the static pressure. Unfortunate that Jenni is repeating this myth on a video supposedly myth-busting.
What about the force it receives when you jump into the water and it hits the surface?
@@stephens2r338 It's the worst moment when the watch enter the water. If you jump from high, then you can create a surpression at the impact. 10 atm WR is better in that case (10 is enough because if you generate an impact that can create a surpression more than 10 atm then you hand will be in a very bad shape and most likely the springbars won't take it anyway)
Even still I'd never take a 30m water resistant watch diving
Regarding "Swiss Made", the Swiss labor costs are substantially higher than those in China. So the watch (sans movement) can be 90% Chinese-made but get the Swiss Made label because the nominal Swiss part costs more than 60% of the total. This seems like the biggest scam in watchmaking.
With this said its better to buy a Seiko, they hate chinese and like to be firm and exact.
I believe this have to say Swiss "Movement" not Swiss made.
@@vvvhhhhhbb uh no
The 60% rule actually only applies to the movement, not the whole watch
@@nintendokings 60% applies to both the movement and the watch. See @10:20. Again, it's 60% of the COST (not material).
Myth -- The elapsed time bezel on a diver's watch is used to gauge how much air you have in your tank. Elapsed time is not a reliable indicator of air consumption. The rate that air is consumed on a dive varies from person to person and by the level of activity. The elapsed time bezel is intended to indicate your bottom time, or how long you have been subjected to pressure based on the maximum depth of the dive, which determines whether and for how long you need to decompress when ascending.
Thats less of a myth and more of just people being stupid
That’s correct but I never ever heard that a watch bezel could be used to correlate with remaining compressed air in the tanks and this would be utter stupidity given we have a pressure gauge for that. Rightly the rotating bezel on a dive watch is used to determine bottom time so that the decompression stops can be done at the correct depths and for the correct durations…
some Puerto Rican guy i met fishing was using the bezel to time when the beach bar closed & when the liquor store closed (two different times). bezels are good for what YOU need them for
And don't forget how important the depth factor is. Air consumption will double or triple when diving to 2 or 3 atmospheres (60 ft./90 ft.).
You better be watching both your dive computer, AND your pressure gauge, or you might have to buddy-breath to make it through your decompression stops. Recreational diving is 100 feet or less, so we don't have to think beyond that for most people.. 🙂
I would think anyone competent would buy or rent a dive computer. Probably slightly more accurate than an Seamaster.
Nice work clearing those up. Had forgotten the water pressure equation from engineering studies in college. Of course the current joke is ‘99.9% of luxury watches never come in contact with any fluid - except champagne!’
Time for a new rating, 1 Bar Champagne Rated 🤣
I was going to mention some more disgusting fluids watches also come in contact with, but I'd better not.
🤣🤣..so true
@@pistonburner6448 If you are in up to your wrist, you are doing it wrong, man.
Just like 99.9% of luxury Off Road vehicles never go Off Road.
This is why you are the best! Loved this video Jenni! Particularly loved all the chat around in-house movements vs. off the shelf. Everyone went nuts for in-house the past few years, but you are absolutely right! In-house doesn't always = better. Nothing wrong with a tried & true ETA, miyota, etc.!
My two favourite watch women
The term “in-house” has no definition and is overused. A company can only have a 20% stake in a movement manufacturer and call it an in-house movement. So lame!
In house doesn't mean THEIR house hahahaha
What gets up my nose is not that makers pretend that a movement is in-house because they have essentially modified an ebauche; that's pretty much been the practice for 100 years. What gets me is that watch journalists (and many vloggers) play along, reporting (for instance) modified ETA movements as in-house Longines or Omega.
@@nusbacher ETA like Omega are part of the Swatch group so even if they were using an ETA it would be in house.
Myth 8 . The price of a watch has a direct correlation to its workmanship.
For the « grandes complications », it is.
Hi Jenni, long time watcher and fan, keep up the great content!! I see comments about water resistance thrown around a lot in the watch community so I thought I'd put some numbers to your comments (which are absolutely correct in principle) for everyone's benefit.
Using the formula you correctly quoted, which is for a STATIC object (i.e. no velocity within the submersed fluid), assuming our watch is underwater (and therefore density is ~1000kg/m^3):
Depth rating of 30m (or 3 atm) = 1000*9.81*30 = 294.3 kPa. This is how much pressure the seals in the watch are "rated" for.
Now assuming we are swimming underwater in a pool, say 2m deep, lets also assume that we are moving our arms at 5m/s (~11mph or 18kph, so quite fast), the pressure experience by the watch seals will be:
depth contribution = 1000*9.81*2 = 19.6 kPa (also referred to as static head)
velocity contribution = 0.5*1000*5^2 = 12.5kPa (referred to this as dynamic pressure or dynamic head)
Total = 32.1kPa, or about the equivalent of being 3.2m of water. So our movement in the fluid equates to the equivalent of an extra ~1.2m in depth if the watch were static. Note that the velocity is a squared term, so increases rapidly with velocity. E.g. if you were to fall off a jetski doing 40mph, this would contribute 144.5kPa (0.5*1000*17^2), which is an extra ~15m equivalent of depth.
Hopefully that's useful for people to get a feel for how much movement of a watch within a fluid actually affects the pressure it experiences.
A small correction… depth rating 30m corresponds to appr 3 atm, not 30. 30atm is around 300m. Almost any watch has a rating of around 100m or more (at least a watch you wear while swimming), thereby speed doesn’t really matter.
Wait...say that again please...
@@janknutfiskaa1880 Jenni knows nothing about watches her husband runs this channel. She just reads the lines.
Long time watch watcher? 😉 . Tangent question, anyone know why they are called watches?
@@skitzocalypso5840 My 2 minutes of research suggests it’s from the word “wake,” as in to wake you up.
Is that right?
I’m not even finished watching & I can say that this is my favorite video you’ve ever done. I’m enthralled. I liked this video not only because I genuinely love it, but so I can go back & watch it again later. Thank you for the work & research.
Weird assed comment.
@@allybaapp1053 Thanks. I was high when I wrote it.
@@dustinb.5574 hehe makes sense
I bought a fake Rolex in Mexico once. At the time a fake Rolex there was going for a non-haggled list of $30 US. It has a quartz movement and the gold plating wears off within a month or so.
But the one I bought was a stainless steel GMT Master II with a true Swiss Movement. I paid $150 US for it in Tijuana down Revolution some. I sold it to a friend that owned a real one that looked just like it. His Jeweler asked him to bring it in for the challenge of comparing fun. Everyone LOVED it! It's worth it's own value. The jeweler wanted it! Fakes can be fun and they DO have their own value - but never pass it off as real...people have more respect for you if you tell them up front "it's fake." - especially if they already KNOW it's a fake. (usually that will be the REASON they bring it up to you - a test.) Great conversation starter of a naughty trip into Tijuana and the Midnight Express slipping through customs. The switchblade knives and Cuban cigars and the fake Rolex watches. Just TOO fun! Then someone said to me of my trips there and back "You know, there's better paying stuff you could be smuggling and the jail time is the same." I stopped visiting Mexico.
I've seen an engineer demonstrate that the instantaneous pressure peaks due to typical human motion in water were still negligible compared to the nominal hydrostatic rating of a watch. I haven't bothered to validate that. I stay on the safe side and just assume anything except a diver is best removed before swimming. And I know that temperature vastly changes a pressure rating - so keep any watch out of your hot shower
I think you're referring to a video made by Marc at Long Island Watch. It is somewhat misleading. Yes, when totally immersed you aren't going to generate enough dynamic pressure to have a significant effect. But when splashing or actively swimming the crawl at the surface or diving or jumping into the water you well can generate enough force to impact the water resistance of the watch. Watches that don't have screw down crowns are particularly affected.
@@bullnose01 my 50m rated Timex with a push crown was my only watch for nearly 15 years. I went in the water with it literally thousands of times. Diving boards , kayaking in gale force winds, everything short of actual scuba diving. It never showed any sign of leaking. I don't think I've ever been more than 5 meters deep with it, so 10x safety factor!
You can boil and freeze a Vostok amphibia with only timekeeping affected
30m WR = no water resistance at all. Drops at the most. Washing hands and light rain
50m WR = shower-proof
100m WR = swimming, snorkeling
200+m WR = diving
500+m WR = saturation diving
@@ChefPelle Vostok 20 metre water resistance = won't let water in at 20 metres depth, 200 metres water resistance means. Stops working at 800 metres pressure and implodes at 1200 metres.
So glad to hear that I don't have to worry about over winding my 5000bar 137 jewel Swish made Tuder. One really great feature of this watch is that it is absolutely spot-on accurate -- twice each day!
what a joke man
My Casio runs on solar power (no battery and doesn't need winding) and it sets itself every night from the national atomic clock. Even without light it run for 6 months and without the time signal is accurate within 15 seconds per month. I never have to correct the date for months with less than 31 days or for leap year. When Rolex makes a watch that does all that, I'll buy it.
@Jark Fiz Probably not. But, enough ionizing radiation to kill the watch would probably kill me too.
@Jark Fiz I suppose an EMP could kill an electronic watch. It has gone through x-ray machines at airports many times without damage. I have a Swiss made Invicta, a rather nice homage to a Rolex Submariner with a two-tone band and blue face. It has a crystal on the back so one can see the movement. Very nicely made.
Hydrostatic pressure equation has nothing to do with dynamic pressure and water flow, which in this case is caused due to swimming. Hence what you need to consider is Bernoulli's Principle, which states that:
As the speed of a fluid (liquid or gas) increases, the lower the pressure it exerts.
In this case water moves relative to the swimmer. So in theory when someone swimms with their watch on (I don't understand why some people do that...) , the watch receives lower pressure than if they were just stand and float in the water.
I watched some pressure testing that Hydraulic Press channel did. They tested a few cheap watches and some mid range ones. The testing showed all the watches held up to double their depth rating at least. The main point of fail was the case back. They would press inward and stop the hands. Lower the pressure and the watch would go again. Pushing several times past would eventually crack the crystal.
Myth #8: Rolex is best.
Me: Grabs popcorn.
it actually is, they practically the only swiss company that makes everything in house and still retains value better. reliability, heritage, value, 100% in house, clout, literally has everything u want from a mechanical watch
@@jojotwice8918 they still aren’t the best mechanical watches out there that goes jaeger lecoultre or a lange and sohne
@@jojotwice8918 I don’t think they are the “only” Swiss company that did everything in house. Anyway the lack of hand finished movements in Rolex already put them one level behind many high end watchmaking companies.
@@jojotwice8918 nope ask them who makes Rolex hands 🙂
As you know, a watch jewel is called a Stein or stone in German, so no implication that it makes the watch more precious as the word "jewel" might, at least in German. I would say, however, that the number of jewels corresponds to the number of moving parts that need to be protected, and hence correlates to the watch's complexity.
jewel = Juwel in german, not Stein
@@Mgoblagulkablong Diamonds, Rubies, Sapphires etc. Colloquially are referred to as stones, Historically they are interchangeable and mean the same thing.
@@Mgoblagulkablong There is never only one meaning or single word equivalent when translating a word. It always relates to context. The original comment most likely was written by a German native speaker, and being German myself I can confirm that in the watchmaking context "jewel" is translated as "Stein" in German, so the comment is absolutely correct. In German the word "Juwel" is mostly used in a more lyrical sense such as "this old building is a jewel of this city" and the plural "Juwelen" mostly refers to pieces of jewelery like necklaces and bracelets decorated with gems like rubies or diamonds.
I like the way you use the term "leeway"; my friends were dumbfounded when I last used it over 10 years ago, and they told me being an old-timer LoL
Sapphire is also not unscratchable. But it is way more scratch resistant than mineral glass
What a lovely accent. Blows Swiss cheese sized holes straight through my heart :))
I agree. Beautiful accent.
Myth 8. The Rolex secondary market is recovering strongly since the public letter from Rolex HQ. 😂🤣😂
Thank you, Jenni, for finally explaining to me how artificial rubies are created. I’ve sometimes wondered, then when I went to look it up, always forgot what I was doing and got stuck on Rolex videos.
Of course you could just do what Jenni does. Get someone else to write a script and then read it out.
Jenni your smile is so pretty!
The Swiss made pricing determinants are open to abuse due to local pricing manipulation. 60% of the cost of a set of components can be a single deliberately overpriced screw, making the entire watch “Swiss made”.
Some VERY well known watches are guilty of doing this…..
"It is mythological to take turns, it is also mythological to create turns, it brings the turns into its pristine state, the same time it is founded and established as myth and the logical"
The threshold for the 'Swiss Made' label has become so lax that Patek decided to come up with their own benchmark. If I remember correctly, Patek no longer puts that 'Swiss Made' label on their watches as their local-input/content requirements for their watches have far surpassed those 50% and 60% thresholds.
Unbelievably good English accent, almost perfect. Not sure how you manage that but well done!
I can hear instantly she is German
0:15 Myth 1
1:46 Myth 2
4:35 Myth 3
5:49 Myth 4
6:32 Myth 5
8:34 Myth 6
9:46 Myth 7
@@MPD90 When I wrote this, it wasn't.
2:48 totally relate to that... I'm constantly IMAGINE wearing this piece
"It's a pilot watch,it doesn't need water resistance" 😁
😂
“How many atmospheres can this ship withstand?"
"Well it's a spaceship, so I'd say between zero and one”
I just found your channel. I usually watch some dudes telling me what watches are cool. And now I see a beautiful lady talking professionally about watches. Im in love!!!!
One I’ve heard quite a bit - Rolex 904L steel is harder - nope, actually softer but more corrosion resistant
So, does that mean easier to scratch also?
@@ALL-il1sw it is much softer and does damage much easier.
The 904L has a luster that's superior to other steels. That's why they use it.
6:32 Hamilton: hold my rebadged powermatic
😂
Sorry Jenni, but the “debunking” of Myth #2 might as well be the actual myth. There is no way waiving your arms in a pool would lead to any significant increase in dynamic pressure. Even if diving from 10m (32ft), the dynamic pressure on your watch when it hits the surface is only 1 bar. Great video, and keep’em coming!
I came to say the same thing. Her math formula is right, but there's no way you can move your arms around enough to make a meaningful adjustment to the pressure.
What about a shower?
Yes, the change in pressure from moving your wrist is too small to make a difference. Jenni is spreading myth
Thank you. Implying that the dynamic pressure created from the movement of your arms will be so great it would negatively impact the watch is insane. This is the stupidest myth and it drives me absolutely crazy because it can be debunked so easily.
@@squigglyphrank9348 Shower should not be an issue either. You would be in the ICU with severe burns before it got hot enough to damage/affect the integrity of the watch.
I don't see the point in wearing a watch in a shower anyway though.
On your comments about over winding of automatic watches. Automatic watches cannot be overwhelmed as the mainspring inside actually slides against the inside wall of the barrel. These main Springs are not permanently a fixed to the barrel wall and so continuing to wind the watch simply causes the main spring to slide more. So, you are 100% incorrect in your description of over winding of automatic watches. This is also true for modern manual wind watches as well, again, to prevent the breaking of the mainspring within the barrel. Love your channel and love your reviews, but this time a correction is needed.
Pressure equals rho x g x h part explained it correctly but the moving arm part is debatable. It has practically no effect on the overall pressure in fact. Long Island Watches confirmed it. The dynamic energy that will add to the hydrostatic pressure energy dictated by the velocity. But the velocity of watch is significantly lower than the hydrostatic pressure term. If you want to achieve to a point where the dynamic pressure come in effect, you have to swim as fast as motor boats. Plus if you swim, the hydrostatic pressure will almost be zero ( swimming at sea level)
Also 30 atm means they test it with a pressure machine (either air or water) at those pressures. It can go down to (let’s say) 30m below sea below which is 3atm. But those watch makers don’t want to risk it as they test brand new watches right out of their production line which is the best condition of the watch for its entire life and customers always do what manufacturers don’t expect at all. Diver’s xxx m (ISO ratings) is a different story. It can actually bear more pressure than it says on the dial, and the manufacturer has to test every single watch they have that priting on the dial
30m WR = no water resistance at all. Drops at the most. Washing hands and light rain
50m WR = shower-proof
100m WR = swimming, snorkeling
200+m WR = diving
500+m WR = saturation diving
@@ChefPelle just because you keep saying it doesn't make it true
Every time I am downtown stuttgart near a watch store, I always hope I’ll see you looking in the window or something.😊
Another myth is the value placed on power reserve duration. A watch will loose accuracy long before it stops ticking, and whilst a longer power reserve does improve its accuracy duration. It is only one of many methods to extend accuracy duration
*Correct, accuracy drops after mainspring tension falls below about the halfway point.*
Great video Jenni.
Imagine when you water ski, beginning to be towed by the boat, with your watch under water... the pressure building up is pretty high, and you are 30cm under water 😂
The water rating/pressure is itself a myth. Hodinkee have an article showing you’d have to swim at superhuman speed for water pressure to make any difference. 100m is 100m. Rolex for example tests all their watches to 125% of stated depth
30m WR = no water resistance at all. Drops at the most. Washing hands and light rain
50m WR = shower-proof
100m WR = swimming, snorkeling
200+m WR = diving
500+m WR = saturation diving
great site for used watches thanks
Glad you cleared these up, so many people assume things about watches so it's nice to get these reaffirmed lol 😅
Very interesting video! I once got some water into a 10 ATM watch during sporty swimming (maximum depth 2 meter). So I am definitely more cautious now....
THANKS !!! VERY INTERESTING AND INFORMATIVE !
Jenni, I respect and follow your channel since the start, but myth numbers two is not explained correctly. This is an extract from a watchuseek forum, and basically moving your hands cannot change the pressure more than 1%, so it has no effect!
“This mystery lead me to seek out the answer and learn more about water resistance and the effects of dynamic pressure specifically. I did found some important pieces to the puzzle here in this forum from older forum posts but also from Wikipedia and also some Swedish scientists that I had enquired about this mather.
What I did found out shattered the dynamic pressure theory to pieces. It simply was nothing more then a lie turned into an urban legend and myth.
Apparently pressure can only be applied to an object as the result of added mass/weight that is applied to the object(in this case added depth with an increased weight of the water pillar above you) in question, or as a result of expansion or due to electro magnetism, another possible source of pressure is some external forcing preventing expansion or inversion. Another source is gravitational pull due to accceleration or decceleration but that reason is somewhat tied in to reason number one the one about added mass.
So what kind of forces can a swimmer/diver apply to his/hers watch? first we have the depth ofcourse. If we use a watch similar in size to a Raysman. Lets say we are at 100 meter depth. The size of the watch is about 5cmX5cm thats 25cm2 in surface area. 1m is 100 cm so 100m is 10.000cm 10.000X25= 250.000 Cm2 of water above the watch that is pressuring against it. The weight of that water is 1000.000/250.000= 250Kg(550 ibs) of pressure against the watch at that deptht. This is known as the hydrostatic pressure.
The diver(staying at the same depth) can only change that pressure against his watch in 2 ways either by moving his arms up or down but the maximum reach of ones arms is very limited usually not more then perhaps 120cm(4') or so.... that is only a change in pressure of 0.12 bars or 3Kg(6.7ibs) of pressure, very little difference not much more then 1% compared to the rest of the pressure at that given depth.
Second way to increase pressure at the watch is trough speed/acceleration. Either by swimming or by moving our arms up and down. The maximum speed we can move our arms in free air is often not more then 3-6 feet per second and it moves even slower under water. And when it comes to Swim speed even an Olympic swimmer usually cant swim any faster then 6-7 feet per second. If we add the maximum output of that we get up to 10 feet or 3 meters of acceleration per second which is the equvivalant of about 10Km/h or 6.25 mph. That aint very much force/pressure in water. Someone smart here at the forum(CycloneFever) calculated this and I quote:
"Without repeating all the calculations here (they involve denominators and the greek alphabet and are PITA to type out), at a depth of 330ft(100 m) and moving your arm at 3 ft/sec, the dynamic pressure is in the order of magnitude of 0.14 feet of head or 0.04% of the depth. Even assuming you could move your arm at 20 ft/sec (14 mph!) the dynamic pressure is only about 6.2 feet of additional depth (
C = 1.35 -1.45 coefficient of resistance for disk, Y (gamma) = 1025 kg/m3 - density of sea water, V = 3.16 m/s - speed of arm, R = 0.02m - radius of watch glass, S = R^2*pi= 0.001256 m2 - area of watch glass, then:
F = (C*Y*V^2*S)/2 = 8 - 9 N which is roughly 800-900 gram force. And you don't need Swedish and especially British scientists 🤣😅🤣
@@kolobokkolobol8774 lol 3.16 m/s... have you tried moving your arm, especially under water? no way you can achieve these velocities! also we must talk about pressures, not forces only. in any case this force is so small it will not affect the pressure exerted by the water above you in a specifi depth!
@@Dr_LK I just used roughly same speed which was given in initial comment 10 km/h = 2.77 m/s, I cheated with 3.16 to make sqaure of it 10 sharp 😁 But for sure those speeds are close to unreal, I totally agree with you
Can't imagine why you would take a nice watch like that into the pool with you. Can't be good for the leather strap either
Thank you. Great informational video. I DO think the Swiss should bring back the true meaning of being, "Swiss Made" in watches, or it could become a somewhat meaningless term. Or maybe it already has, and most people don't realize it, even as it spreads too far across the board as it is. Thanks again.
1:21 I thought those were shallots
Another myth: in-house movement doesn't always mean engineered and designed in-house from the ground up or at all **Tag Heuer 1887**
You must be a newbie. Do you really believe the 1887 has been the only "in house" movement that wasn't really in house? Or you're just a sheep that hate whatever the you tubers tell you to hate. Be a free thinker.
@@richarddawson5836 it looks you used all of your one brain cell to write this comment
@@R023N Try using grammar correct next time dummy.
@@richarddawson5836 it's ok to let your insecurities out. Don't be afraid to express yourself. I don't know how it feels to only ever feel of myself worth in making juvenile RUclips comments, but you have my sympathy.
@@R023N Did you learn that in therapy? You are such a looooooooooooser! Seriously if you're going to comment don't be such a dork.
I like the reverb in your room
Came in here to see if anyone else was going to comment on that.
Hi Jenni, as you mentioned inhouse movements, i remembered a story of mine, not long ago, im a HUgE fan of tudor, and i had so many over the yrs, and tried them with the eta movement and the in house, i never had a problem, i had a blackbay eta red then upgraded to the inhouse movement thicker case same watch almost, as my main everyday watch, along side a bought the pelagos black inhouse, then updated to the blue pelagos when it came out, after 5 yrs of daily using the red bb, sold it and got the white panda chrono. It was a unicorn to me ! Its a diver as well as a speedy ! Loved it in everyway ! BUT, after less than a month wearing it, i came to realize that between the 6 and the 11 the seconds hand start acting wobbly and moves in a funny matter (i have videos) so i went online searched everywhere and i cane along another videos showing another person with the same problem. So i ran to the dealer here in kuwait, (the most expensive dealer in the world) and showed them the videos and the how it is live, they took to test it for 2 days then got back to me saying that yes there is a manufacture default thus will send the watch to Switzerland to replace the movement ! For free ! I was like hey hold on ! I bought it new from u, and now i have to go through 3 months without my watch bcus u wanna replace my entire movement ? Wth ? How is that even possible?! Having said this i had my name on the list twice for the reversed panda same watch, they called me twice, and i cancelled i dont wanna buy it anymore due to a dealer that ruined tudor image in my head ! And until today a year later im still wearing it, and that wobblyness keeps coming back from time to time !
LOL you guys are so funny. Jenni knows as much about in house movements as she does the Superbowl. Her ol' man writes all this BS and she reads it out.
The made in Switzerland section was great information!
My Casio runs on solar power (no battery and doesn't need winding) and it sets itself every night from the national atomic clock. Even without light it will run for 6 months and without the time signal is still accurate within 15 seconds per month. I never have to correct the date for months with less than 31 days or for leap year. When Rolex makes a watch that does all that, I'll buy it.
Myth 8: a divers’ watch only works under water.
So, a diver only lives under water? 🤔
99.99999% of dive watch wearers don’t even dive… just saying
@@walther9161 I wear I dive watch and I hardly even go swimming lmao
@@walther9161 But James Bond does, 😂
I shower regularly with my dive watches to be certain they remain accustomed to water.
Oh man, she has to be the best or at least in the top two of watch experts on RUclips! Glad she returned!
How many of the 30 companies lobbying for foreign content in “Swiss” watches are under the Swatch group’s umbrella I wonder 🤔. Thanks Jenni as always, your channel is one of the most enjoyable in this genre. Danke sehr!
Most of them I would assume. 'Swiss Made' = higher selling price.
I have to question how much of an Omega is really made in Switzerland. I have seen receipts for replacement bracelets with “made in China” on them…..
Not to say Chinese made components are not good - some are very good, but they need to be honest……
@@rosshilton Bracelets or straps don't count as part of the watch. Its only the movement and case that decide if it can be called Swiss
Hard to produce swiss made gator straps. Haven't heard of any gator farms in Switzerland :)
I know with Seiko all of their cheap solar and quartz watches are now Made in Malaysia instead of Japan. That is the sad reality of things. All of these watch companies are looking for ways to keep the costs down.
“It’s a myth that the depth rating is an accurate indication of how deep you can go.”
Are we sure this is true? Is it possible that THIS is the myth? Studies show that the dynamic effects of moving the watch through the water are practically negligible. Has anyone actually proven that a 30m watch can’t survive routine vigorous swimming, or do we all just keep repeating this because we’ve heard it so many times?
Nice debunking!
Unfortunately the "made in ___" are mostly used as marketing, in Italy it happens the same (although I don't have a quote from the law) as long as the final assembly of a product occurs here, it can be labeled as Made in Italy
This is true for automotive as well.. some vehicle with production VIN from Germany are built somewhere else
Their is also vehicles that has a VIN that starts with an L that stands for China and they are of equal quality than the ones made in Germany.
That is why you have alot of factories with chinese non italian speaking. Because they got the labour to italy and still pay out the same low salery.
@@Genci0 I think Harley-Davidson’s should do the same hire Chinese workers and those bikes will don’t have leaks and they become very reliable.
tunisian / turkish origin olive oil is sold as made in italy (when its only bottled in italy)
Sehr informativ. Ich würde nie mit einer Uhr schwimmen gehen, die weniger als 10 bar /100 m wasserdicht ist. Und bei 3 bar würde ich sie sogar vor dem Händewaschen absehen; geschweige denn sie beim Spülen oder Arbeiten mit Wasser oder Wasserdruck tragen.
Thank you for such an informative video! I feel like some of the points could be clarified but I definitely understood what you meant. And thanks for the very thorough definition of Swiss Made. I love listening to you talk and am subscribed so I don't miss out!
Thank you clearing this up 😊 You are such a darling.I love your soft well spoken way of explaining what these features really mean. Thank you for sharing Jenni I don’t want to be waisting my hard earned money’s on a myth. Thank you to my good friend @Britt Pearce for dropping in the comments. I can’t wait for another Britt/Jenni video (The Dynamite Duo) ❤💥💥🙏
Myth 8: Swiss watches are superior to German and Japanese watches.
Yes what is it with Swiss? What happens on that area of land no one else can do?
My watch has ‘Made in Great Britain’ on the dial.
Very helpful indeed.
Thank you 🙂
@jenniellawatchroll5 what's the name of your channel there?
After 2 months research I realized there is no point buying Swiss unless someone has a need for a certain must have brand and is willing to pay extra to get it. I understand some people have the need for status symbols and this must be the biggest sales driver for legacy brands. For those who don't care for brands and willing to build their own watch there are lot of choices when it comes to case styles, bezels, dials and movements and the savings are considerable. The best part is that you know your watch, because you put it together.
Is she laughing at us?
Hi Jenni, love your videos, thank you again! I have a 15 years old Tag Heur Monza which has 30m WR, and I decided to give it a wash under the tap, and I got water into it! So now I know that 30m WR DOESN'T mean it is water proof.... learnt it the hard way :)
30meters = 3atm = 3 bar , at least here in my country the water coming from the sink fully open is 6bar so even a 50meter watch wound not feel comfortable.
If your watch was not serviced in 15 years then the chance are the seals had perished hence the water ingress. Best to bring the watch to a watchmaker who will service it and replace all seals.
This was a fantastic and informative video, Jenni Elle!
I recently saw a video in which a $30.00 Casio was tested way beyond its bar rating and didn't break until that pressure exceeded 200 meters,even then the watch still worked but the LCD was damaged.Incredible!!The companies that lobbied against the increase in the Swiss standard,are most likely any of the Swatch held companies.........................................
30m WR = no water resistance at all. Drops at the most. Washing hands and light rain
50m WR = shower-proof
100m WR = swimming, snorkeling
200+m WR = diving
500+m WR = saturation diving
@@ChefPelle Casio are obviously playing it very safe.........................
@@russellharris5072
I was just posting the industry standards of water resistance.
To be called a “moon watch” a watch only has to resemble a watch that was once worn on a mission to the moon
Thanks for sharing! Love your perspective on these myths.
I'm really curious about this "Swiss Made" stuff... makes us think big hitters are truly involved.
Appreciate you putting this together.
Why is it possible to dive up to 40 m depth with a 100 m water resistant Apple Watch Ultra and not with a 100 m WR automatic watch ?
This!!! It frustrates me that people keep pushing the water resistance myth when they should be discussing the trustworthiness of the manufacturer instead!
The general industry standard is as follows
30m WR = no water resistance at all. Drops at the most. Washing hands and light rain
50m WR = shower-proof
100m WR = swimming, snorkeling
200+m WR = diving
500+m WR = saturation diving
@@ChefPelle wrong
@@bikeman123
Nope. That's the industry standard
Myth 8 - Your watch is valuable and almost eternal. Just wait until you get a service check for $800 claiming that they had to replace nearly all the parts :) Well at least if you divide it by two you get a rough idea how much it cost to make.
Everyone loves the luxury life the problems most people have about buying luxuries are having enough money to buy one, but that won't matter if you have a stable financial life.
I agree with you and I believe that the secret to financial stability is having the right investment ideas to enable you earn more money, I don't know who agrees with me but either way I recommend either real estate or crypto and stocks.
Yeah!! It would be more beneficial and yield more profit if you actually trade on cryptocurrency I've been trading since the dip, I've made so much profit trading
I heard a lot of investing with Mr Edward Jones and how good he is, please how safe are the profit?
I traded with him, The profit are secured and over a 100% return on investment directly sent to your wallet.
@@davidedwards2842 you need to report it as unwanted commercial content or scam
The Swiss should be labeled anything not 100% manufactured and assembled in Switzerland as "Assembled in Switzerland from domestic AND imported parts". I see a lot of products labeled "Assembled in USA. (or Canada) from domestic and imported parts.
The good folks at Pagani have assured me their crystals are indestructible, their in-house 92 jewel movements are superior, and I can swim with their Submariner copy to the bottom of the ocean.
92 jewel?
@@martinda7446 92, 93…whatever it takes.
No …….it’s one big single jewel
Like a light saber. They’re going to start putting the number of jewels etched in the side of those too.
I don't think you've ever read a Pagani listing. They barely mention the jewel count as their business model relies on bulk purchase of generic japanese movements.
So... 60% of the time, Swiss watches are Swiss 100% of the time, got it! ;)
I think you got it backwards.
100% of the time, Swiss watches are only 60% Swiss.
@@saodavi6267 You are absolutely, logically correct. If you watch the movie "Anchor Man" you'll get the reference, though...
Myth #8- the guy swimming butterfly in the video knows how to swim butterfly. He does not. Absolutely awful technique. Signed, a swimmer.
When I was a kid, my grandfather was so proud of the 17 jewels in his watch. Seventeen jewels!
I think that if 100 metres doesn't mean 100 metres, we need to stop using metres and put the tolerance down in atmospheres.
it does mean "100 meters", but in an ideal water situation: e.g. if it is dipped veery slowly, nor shaken, so that it creates exactly the same pressure "as if" at 100 meters. That's why she gives swimming as an example--even if you're at half-a-meter, .. the pressure is actually more than that.
I think folks are too panicky about this question. Everyone here seems to think they flail their arms at supersonic speed at 100m depth while in reality most people plod along at the surface between 0-5m depth if they even submerge themselves.
Those that swim fast do it so the hand and wrist hit the water at the most efficient angle, thus causing little drag. It does nothing to a watch. I've been swimming with watches for 25 years now, and the only time it went wrong was with a new Seiko 200m driver's. Because a gasket was damaged. Seiko fixed that under warranty, never had a problem again. Aside from that I never had anything with 50m WR and up leak, and this includes the shower, bathing and even Finnish saunas.
I think watch manufacturers would do better to indicate you should test the water resistance every two years and replace your gaskets when needed. Good maintenance is much more important than the final rating.
30m WR = no water resistance at all. Drops at the most. Washing hands and light rain
50m WR = shower-proof
100m WR = swimming, snorkeling
200+m WR = diving
500+m WR = saturation diving
A jeweler told me years ago that a 17 jeweled movement was really fully jeweled and the extra jewels didn't really count. 17 was a very popular number back when mechanical watches were used by everyone.
Really liked the content of this video- well done! The sound quality felt a little distracting as it sounded like you were in an empty room with a very slight, but noticeable echo. Regardless, I look forward to checking out your other videos.
It's goofy, but 3atm is usually described as splash resistant. Also, I've seen the math on pressure increase due to movement in water, and it turns out to very negligible for watches, since the exposed sealed areas are so small. I hate disagreeing with my fantasy gf. At least the make-up sex is really good.
Yes, wtf.
When servicing a lot of well known 30m WR watches, the main part is cleaning out all the dust. They're not even dust resistant. A Breitling Navitimer (3ATM) is toast if going into a pool. So was most of the Omega Speedmasters after their moon missions, landing at sea
About fake watches, my gun dealer bought a Panerai from a friend and wore it for over a year, considered selling it to me, then, found out it was a fake when his watch-maker took it apart when there was a clasp issue. The watch-maker said he suspected it was fake because of the feel of the crown, but wasn't certain until he had taken the back off. The movement exhibited high quality workmanship, it just wasn't a genuine Panerai. Lesson is, if even a professional can be fooled by it without an in-depth examination........
It's why the SAR Rescue-Timer is 1,000m water resistant. Not because someone is going that deep, but because water pressure is high when you're flailing around in rough seas and changing depth quickly.
LOL
Great video. Thank you. I loved the last one about Swiss Made. There is certainly more than meets the eye.
HA! 37 jewels? Take a watch apart and try to find them. No 'TRUTH' in advertising. Might as well say 100 jewels.
they will be there
Water resistance part is completely wrong, other than that great video
3 bar water resistance is perfectly fine for going swimming. I've done it all my life with Swatch watches (which are 3 bar water resistant), even some light diving, and never had the slightest issue with them.
Like Vostok watches Swatch water resistance figures are the actual wate r resistance
30m WR = no water resistance at all. Drops at the most. Washing hands and light rain
50m WR = shower-proof
100m WR = swimming, snorkeling
200+m WR = diving
500+m WR = saturation diving
@@ChefPelle lol, what a load of crap. Seriously.
@@elgoog-the-third
No, it's the industry standard.
Been to the bottom of the Red Sea wearing a G-Shock, no issues!
Been windsurfing off the end of the sewage outfall in my Casio.
Didn’t fall in 👍🏻👍🏻👍🏻👍🏻
Congratulations on the large amount of information that you manage to disclose in each of your videos!
Thank you for explaining the water resistance myth! Nobody has ever satisfactorily explained that to me until now.
I'm sorry but she is completely wrong. She is using the wrong formula because she considers static pressure instead of dynamic. As water speed increases due to swimming, water pressure decreases.
It's basic fluid mechanics.
@@dimitriostsiganis I studied business, not physics, so I don’t know anything about fluid dynamics, but I have the general idea now and that’s all I need.
@@braydencromar That's the thing you don't. Because what she says is fundamentally wrong.
Since you mentioned studies, I studied civil engineering that is why I'm telling you that you shouldn't consider what she is saying about water pressure. And it's not to brag or anything like that.
Here is how water depth pressure (static) works: At water level it is 1 atm. Every 10 m down pressure increases by 1 atm (or about 1 bar). So 30 m is 3 atm, 300 m is 30 atm and so on.
But when you swim (at water level 1 atm remember) water is moving around you and your watch. When any fluid moves AROUND any object, its pressure it exerts drops (creates negative pressure), nothing more to remember. So actually pressure around the watch is decreasing slightly. It's negligible actually because humans dont's swim that fast it won't pop the crystal out, but in principle going insanely fast could do it.
Possibly already mentioned, but I've not seen it:
The pressure at sea level is already 1 ATM, so at 10m is 2 ATM and at 20m is 3 ATM.
So, a 3 ATM watch is rated to 20m static pressure.
This is scuba diving physics 101, and most watch advertisements get it wrong.
@@IDKline No, I'm talking about 10m out of 30m in the case of a 3ATM watch, which is what was discussed and the example I used.
So, in this case, claiming 30m water resistance is over-egging the pudding by 50%. Hardly insignificant.
Thank you for your contribution.
Hate to say it but whatever elegance a luxury watch adds to your wrist is undone by the Tattoos you added your arm.
good clear informative video. I never go diving with a luxury watch. good ol" Casio for that.
First
Come on, most buyers of expensive watches don't swim or dive. They just want a watch that is waterproof when washing their hands or rinsing the sweat off the watch...
@JenniElle could you please tell me what winder is that in the background. Awaiting your reponse. Thanks!
One of the best videos for beginners 👍👍👍👍👍
Your channel is amazing. Definetly the watch expert whoes opinion I value the most
What is that watch winder case in the background?
Hey Jenni. What a nice video again.. :) Would love to see more insights-videos from the watchmaker industrie..:)
May I ask where did you get the information that 30 anonymous companies are lobbying against the swiss made label? Best wishes
So, Swiss Made is pretty much Swiss made!
fakes are so common today in all things, that for the past few years, i only buy from an authorized dealer or direct from the company. i'd go as far as to say that if you just got some random item from amazon or ebay today, you've likely bought a fake
I've never been fooled by a replica.
Those Lange's !