For those wondering why you might do this, the Hydraulic Press channel stuck an oil filled 200m rated watch in the test chamber and took it to the equivalent of 3,000m and it survived. Most 200m rated watches can go deeper out the box, but only to around 600m before the glass cracks or the case back collapses under the pressure. An oil filled watch with an electromechanical movement will suffer a severe reduction of battery life, so an all digital model or solar powered movement might be the best way to go. A solar digital watch would probably be the most suited for this type of modification. Lacking any bubbles inside the case, the watch will suffer severe internal pressure changes with heating and cooling. This may cause seals to fail prematurely as fluids are essentially incompressible and that excess pressure has to be relieved somehow. An interesting idea that can greatly increase the depth rating of a watch but probably not something that is suitable for an everyday beater.
After watching this, I went to eBay and bought an MRW200H and Microlubrol. I don't even really care if there's any actual improvement to the watch that I'll ever use, it's just fun to tinker and learn new skills. Cheers mate, should be a hoot.
Thank you, Darak for this video. I think it's very helpful, and (as far as I know now), you do it quite properly. I already moded a Casio F-91 years ago, filling it with Olive Oil !. At the moment, still it's working quite fine. Visibility doesn't change as much as with analogics, but oil improves dramatically the submergibility of the watch. This just "water-resistant" Casio has gone diving with me down to 40 meters more than five times. And many more, a bit shallower. But now, I and a group of friends want to hydrolyze some analogic watches. First I decided to start with the MRW-200 that you fill here, because (as you say) the effect looks better than on the MDV-106. But after thinking about it, I'd rather prefer a watch like the Duro, with a screwed crown (even though a screwed-down case back is trickier to close than a case back with screws). I'm more confident about avoiding future oil leaks with a screed crown. Let's talk about the procedure. I like very much the box you used. I think it's the perfect size, and I hope to find something similar. I like also the way yo refill the leaking oil with the syringe. I guess that I will manage to close the screwed down back case properly (without leaving bubbles), and that I will set in position the crown, because I see that you close the case, before closing the crown. Is this to avoid excess pressure inside the watch, while you are closing the back, and let the oil leak through the crown's hole, in case of necessity? And finally, my biggest doubt: I don't see that you leave any bubble inside. The dial looks gorgeous in that way. But, aren't you afraid that with warmer temperatures, the oil expands inside the watch, and can cause problems (or leakings)?. In other oil modding I've seen that they leave bubbles (bigger or smaller), and (for instance) Sinn has patented a special piston for dealing with this issue. Tell me what you think about it. Maybe this oil doesn't expant¡d too much with the temperature changes. Finally, as I've seen in some other vídeos, I think that you are right with the density ot the oil. 50 cst seems t have the right amount. But I wonder why they don't use even less dense oils. If they keep the same conditions about conductivity, I don't see any problems to use them, and the hands would find less resistance in moving. Anyway, thank you for this vídeo, And I hope to read your answers.
Hi Boga92, thank you for your long and informative common, but you really should watch this video first, and we can discuss more, this is my follow-up video of the Hydro mod, ruclips.net/video/UpYuMbbw4bk/видео.html
@@darakwatches467 I already saw the other video. But I find impossible fitting the styrofoam balls in place while closing the case back. Do you think it's possible to fill the case with silicone oil through the crown hole? Anyway. I think you didn't leave any bubble inside these two watches. How are they behaving? Any leak?
For the thermal expansion, perhaps the o-rings of the buttons provide enough flexibility. Would be interesting to calculate the change in size of the oil.
Glad to find you again - I’m still looking for a small bottle of Fluorinert 76 I think - but cheapest is about £50 for 500ml (way too much). As before, great vids BTW 👏👏👏👏👏
Nice vid and it works great BUT it eats batteries. I've done a few of these and the battery has lasted as little as a year. I'm guessing because the motor is using a lot more torque.
due to oil viscosity, how accurate the time will be? Kindly validate plssss im guessing it will be delayed few minutes per day due to added resistance of the movement?
So what happens now when you pull out the crown to adjust the time? Wouldn't the oil leak out? And you have to do this again when it is time to replace the battery?
I imagine pulling the crown out would create negative pressure that would suck a little air bubble in past the O-rings, then pushing the crown back in would either compress that bubble or push oil out.
I wonder how the analogue models respond to the medium viscosity increase after oil filling. Do they become less accurate or does the battery life decrease after such a mod?
Whow, no triple whow. Unfortunately i could'ot give that super positive comment on your DARAK Watches II channel. Therefore i do it here. Your video work is perfect, your comments reflecting your ambition , to do perfect work. It's perfect what you do. Of course subscribed. You got a new fan.
How does the viscosity of the oil affect the drag on the hands of the watch? I'm guessing that for digital you don't care but for analog watches there are moving parts, hence, there's resistance. So have you tested for +/- seconds per day?
I haven't tried it but I've heard in quartz watches like this one the accuracy is unaffected but it zaps battery life. Probably wouldn't want to do this on a mechanical.
As long as the watch is 100 METERS or greater water resistance it should be fine. Anything less does not have sealed buttons when they are depressed so the oil would just leak out.
You forgot to grease the gasket. Oh wait, never mind 😁. Why didn’t you remove the crown and fill oil from the stem opening? What happens if we try this with a mechanical watch? (Part 2 he answers) One last thing came to my mind, I think it is better to replace the battery before proceeding cause you know, oil, dead battery, messy situation…
For those wondering about leaking thru the casetube when the crown is un-screwed, most if not all dive watches have o-rings in the stem/casetube assembly which will prevent leaks when un-screwed, maybe if the watch is very hot, it might puke some out of the assembly but I don't think that it's a bad thing, it'd be better than blowing the crystal out, I've seen where people leave a bubble for heat expansion in the fluid, mine had one but it disappeared
O do not recommend doing this on a analog watch. I did on some digital easly, but analog has problems. Forst, you get to pill the crown everry other month to adjust the date. Second, the lifespan of the battery would be reduced. Better do it on a digital solar and never open again. Last: you should allow to some bubble inside as it will compensate for the volume increase whem temperature changes, or cristal could be loose
Херня! Не делайте так с часами имеющими секундную стрелку. Секундная стрелка встречает сопротивление масла, двигается с затруднением, и часы отстают. Я заливал масло различной плотности, сразу отставание часов заметил при заливке масла вязкостью в 100 сСт, далее я заменил масло на вязкость в 5 сСт, и часы всё равно отстают. (на меньшее время, но отстают) Короче - заливка масла подойдёт если вы заливаете его в часы БЕЗ секундной стрелки, или в часы с электронным дисплэем.
@@alexgloba9.90 на мне сейчас часы G-Shock GW-B5600, я залил в них вязкое масло 2 года назад, кнопки нажимаю каждый день,признаков утечки масла не видел ни разу! Оно и понятно, это же G-Shock, у этих моделей внутренняя начинка не контактирует с внешней средой.. Но есть у меня и другая дешёвая модель Кассио, не джишок, туда залито жидкое не вязкое масло, так вот там масло подтекает, я не могу понять откуда.. Подтекает после того как они нагреются на солнце, и остынут ночью.. На даче на окне оставляю, приезжаю через неделю - масло на одну четверть убежало.. Так что я думаю протечки зависят от того герметична ли начинка от внешней среды, это решает производитель
I have done this on two watches. Once on a quartz Casio Marlin and once on a Casio G-Shock ani-dig watch. Only do this mod on a fully digital watch. Even the thinnest silicon oil will add resistance enough to drain the battery on an analog quartz watch. On both of mine, with new batteries, they died in 6 weeks. After a thorough cleaning and fresh batteries, they worked fine. A full LCD would be great.
Very interesting, I would imagine doing so would make the watch more water proof in a way, right? Also won’t the oil cause friction and delay the whole watch by a bit over time? Also what happens when you change the battery? I’ll you need to have extra oil at hand to fill to avoid bubbles during battery changes, also would this work with a mechanical watch????
Can one do this to a solar-powered watch? I ask because I don't think I'd like to do a do-over every time I need to replace the battery. If not, I'd recommend replacing the battery with a new one before doing the mod to make it last longer before the next reapplication of oil. Nice video and thanks! Thumbs up!
@@MFRiley I suppose I mean "automatic", honestly I thought "automatic" and "mechanical" meant the same thing. My comment was meant to highlight that every digital watch has a battery. All digital watches (such as quartz) are going to have a battery and the battery life is affected by this technique. How fast it kills the battery, I'm not sure.
with Mine?..I made a "Rolex Submariner" style watch into a Oil filled to test it, it has a rubber O-Ring on the Crown shaft though not just a metal on metal seal... it seems to hold everything back OK when I change the time/date, I could imagine some air working its way into the case eventually with multiple changes...but so far?..it's held up ok!.
@@daalvares if you angle the watch correctly when changing Date/Time (crown pointing UP/High) then You should be OK for a FEW changes, eventually though?.. air would work its way into the case with Multiple changes, but that's a quick painless fix.. 10 mins every 6 months?.. MAX!
Watches look great man, I was reading that you can put the MRW200H dial/movement into the MDV106 body, maybe try that next so you get the look of the 200 in the Duro body, might be worth a video :D
For those wondering why you might do this, the Hydraulic Press channel stuck an oil filled 200m rated watch in the test chamber and took it to the equivalent of 3,000m and it survived. Most 200m rated watches can go deeper out the box, but only to around 600m before the glass cracks or the case back collapses under the pressure. An oil filled watch with an electromechanical movement will suffer a severe reduction of battery life, so an all digital model or solar powered movement might be the best way to go. A solar digital watch would probably be the most suited for this type of modification. Lacking any bubbles inside the case, the watch will suffer severe internal pressure changes with heating and cooling. This may cause seals to fail prematurely as fluids are essentially incompressible and that excess pressure has to be relieved somehow. An interesting idea that can greatly increase the depth rating of a watch but probably not something that is suitable for an everyday beater.
Nobody remotely thinking about diving to 3000m is thinking about buying this watch bro 😂
That's not the point
@@saadmaanshahrier2 Nobody diving to 200m is thinking about buying this watch either 🤣
And here we go..... Love the HPC!
Why not put a little foam block somewhere inside who's only purpose is to get compressed/decompressed?
After watching this, I went to eBay and bought an MRW200H and Microlubrol. I don't even really care if there's any actual improvement to the watch that I'll ever use, it's just fun to tinker and learn new skills. Cheers mate, should be a hoot.
How was the watch now? :v
What skills did you learn?
ruclips.net/video/6wPPUdLN6WM/видео.html - the MRW-200H, an Unexpected Favourite.
Does the watch still works ?
@@valmonta3647 Still ticking away.
Good timing, I've just bought an MRW-200H and want to give this a go. Thanks!
I know ill never do this to any of my watches but this was very informational and would be a great video for anyone actually wanting to do it.
Thank you, Darak for this video. I think it's very helpful, and (as far as I know now), you do it quite properly.
I already moded a Casio F-91 years ago, filling it with Olive Oil !. At the moment, still it's working quite fine. Visibility doesn't change as much as with analogics, but oil improves dramatically the submergibility of the watch. This just "water-resistant" Casio has gone diving with me down to 40 meters more than five times. And many more, a bit shallower.
But now, I and a group of friends want to hydrolyze some analogic watches. First I decided to start with the MRW-200 that you fill here, because (as you say) the effect looks better than on the MDV-106. But after thinking about it, I'd rather prefer a watch like the Duro, with a screwed crown (even though a screwed-down case back is trickier to close than a case back with screws). I'm more confident about avoiding future oil leaks with a screed crown.
Let's talk about the procedure.
I like very much the box you used. I think it's the perfect size, and I hope to find something similar. I like also the way yo refill the leaking oil with the syringe. I guess that I will manage to close the screwed down back case properly (without leaving bubbles), and that I will set in position the crown, because I see that you close the case, before closing the crown.
Is this to avoid excess pressure inside the watch, while you are closing the back, and let the oil leak through the crown's hole, in case of necessity?
And finally, my biggest doubt: I don't see that you leave any bubble inside. The dial looks gorgeous in that way. But, aren't you afraid that with warmer temperatures, the oil expands inside the watch, and can cause problems (or leakings)?.
In other oil modding I've seen that they leave bubbles (bigger or smaller), and (for instance) Sinn has patented a special piston for dealing with this issue. Tell me what you think about it. Maybe this oil doesn't expant¡d too much with the temperature changes.
Finally, as I've seen in some other vídeos, I think that you are right with the density ot the oil. 50 cst seems t have the right amount. But I wonder why they don't use even less dense oils. If they keep the same conditions about conductivity, I don't see any problems to use them, and the hands would find less resistance in moving.
Anyway, thank you for this vídeo, And I hope to read your answers.
Hi Boga92, thank you for your long and informative common, but you really should watch this video first, and we can discuss more, this is my follow-up video of the Hydro mod, ruclips.net/video/UpYuMbbw4bk/видео.html
@@darakwatches467 I already saw the other video. But I find impossible fitting the styrofoam balls in place while closing the case back. Do you think it's possible to fill the case with silicone oil through the crown hole? Anyway. I think you didn't leave any bubble inside these two watches. How are they behaving? Any leak?
For the thermal expansion, perhaps the o-rings of the buttons provide enough flexibility. Would be interesting to calculate the change in size of the oil.
For added points do this on a glass table so you can see underneath ;)
Im glad you are back! You are one of the most unique channels on RUclips.
Hi Rafe, thanks, and welcome back.
Glad to find you again - I’m still looking for a small bottle of Fluorinert 76 I think - but cheapest is about £50 for 500ml (way too much).
As before, great vids BTW
👏👏👏👏👏
You could close that container and turn it sideways so that the air can go out through the crown. Maybe it would take a couple minutes though
Nice vid and it works great BUT it eats batteries. I've done a few of these and the battery has lasted as little as a year. I'm guessing because the motor is using a lot more torque.
solar movement is the answer
@@artempriadko6974 No, the oil stopt enough UV from getting to the dial, so it will not charge enough.
What happens when you loosen and pull out the crown to adjust the time. Does oil seep out?
I have a Casio MRW 200H watch, exactly the same as the one in this review. the watch is very powerful
Noway. Exactly the same? So you are saying you have a copy of a global mass produced watch? Unbelievable.
due to oil viscosity, how accurate the time will be? Kindly validate plssss
im guessing it will be delayed few minutes per day due to added resistance of the movement?
Does the watch tick slower when oil inside? it seems as if the seconds hand is a bit more "lazy". Don't know whether this affects the timekeeping...
So what happens now when you pull out the crown to adjust the time? Wouldn't the oil leak out? And you have to do this again when it is time to replace the battery?
sorry for late reply but i think some watches have some gaskets inside even if you unscrew the crown it is still water resistant
Really good question, because oil is uncompressible. If you pull or push any button it should leak
I imagine pulling the crown out would create negative pressure that would suck a little air bubble in past the O-rings, then pushing the crown back in would either compress that bubble or push oil out.
it's waterproof even with the crownd pulled
Quick question: what if you have to change the date or hour? Does it become a mess?
I wonder how the analogue models respond to the medium viscosity increase after oil filling. Do they become less accurate or does the battery life decrease after such a mod?
I was wondering the same
Super injoy coz tomorrow i buying a casio duro ang i going like your doing hahahahha thanks,, now i know
Does it affect the accuracy of the watch??
So, a watch with a screw down crown doesn't leak oil when you un-screw it it?
Ok looks great but how do you adjust the time
In theory, if you remove the seconds hand, the battery life would improve.
What?
I wonder how much the weight changes. Thank you for the informative video.
Kamera pod spodem by ułatwiła robotę?
Which soap and material did you use to wash the excess oil
Would you still be able to operate the crown to set time and date on the mrw 200h, without oil leaking out
Will oil create a drag on gear train.? & Stepper motor !
What happens every time the clocks go backwards or forwards? Or even date detting. The crown coming out will introduce air won't it?
And what happen if you open a bottle keeping it horizontal, the cap will introduce air won’t it? ;)
Can we do the automatic watch like this,
I wonder if its effect the tourbillion and make accuracy change?
How do you reverse this in case that it does not work out well? I guess a lot of rubbing alcohol and work?
Whow, no triple whow. Unfortunately i could'ot give that super positive comment on your DARAK
Watches II channel. Therefore i do it here. Your video work is perfect, your comments reflecting your ambition , to do perfect work. It's perfect what you do. Of course subscribed. You got a new fan.
Oil works better in digital watches. The oil forces the movement and the battery ends quickly.
How much does battery life decrease after this process?
How does the viscosity of the oil affect the drag on the hands of the watch? I'm guessing that for digital you don't care but for analog watches there are moving parts, hence, there's resistance. So have you tested for +/- seconds per day?
I haven't tried it but I've heard in quartz watches like this one the accuracy is unaffected but it zaps battery life. Probably wouldn't want to do this on a mechanical.
is there an alternative oil that can be used? microlubrol or even fluorinert fc-40 is hella expensive to buy and also difficult to find
Interesting. Looks great.
I have a Question, dose the oil escape when resetting the Time ???😊
filling a watch with oil is more than a little bit crazy
Most dials like pressure gauges and quality compasses are filled with oil.
Doesnt the oil short circuit or ruin the electronics inside the watch
No, oil is an isolator and non-conductive.
really cool 👍 ..well done !
how about baby oil ?
Can the same technique be used for a rangeman 9400?
Will the oil run out if you try to set the time?
this is just amazing
why dosent affect to the mechanisim?
Sinn was the first company to make a silicone oil filled watch back in 1993.
Hydro Mod oil on the Rubber Gasket
Are there any websites that sell diy watches? You buy what you want and you put them together to become a watch of your own design?
Awesome but how does this NOT leak out of the crown.
They are water resistant watches. Seals at the crown.
No water in. Similarly, no oil out.
@@wallytangofoxtrot4721 awesome
Probably the black dial pops more as the black satin dial when "wet" gets darker
Here you are! - subbed.
Hi L, thanks.
Did you change your channel's name? Glad to see such great contents 😊😊
Hi Lowe, no, I open a new channel, the old one is gone forever.
@@darakwatches467 Sad to know that. Sorry for your loss. Hope you can grow this new channel fast. Keep upload great contents 🌈🌈.
microscope objective oil is perfect
Great video!
Hi Frank, thanks.
Isn't the oil going to eventually ruin the battery powered electric movement.........?
Great video! Thanks for making it.
Now all you have to do is figure out how to hydromod your lungs and human cellular structure to withstand the increased hydrostatic pressure.
Can I do this with my G shock solar ?
no
As long as the watch is 100 METERS or greater water resistance it should be fine. Anything less does not have sealed buttons when they are depressed so the oil would just leak out.
You forgot to grease the gasket. Oh wait, never mind 😁.
Why didn’t you remove the crown and fill oil from the stem opening?
What happens if we try this with a mechanical watch? (Part 2 he answers)
One last thing came to my mind, I think it is better to replace the battery before proceeding cause you know, oil, dead battery, messy situation…
Digital watch don't get grounded when filled with oil? Will this work on digital watch G-Shock?
grounded to what?
if you mean "short circuit" - Silicon oil is dielectric
Hi Darak. Are you back?
For those wondering about leaking thru the casetube when the crown is un-screwed, most if not all dive watches have o-rings in the stem/casetube assembly which will prevent leaks when un-screwed, maybe if the watch is very hot, it might puke some out of the assembly but I don't think that it's a bad thing, it'd be better than blowing the crystal out, I've seen where people leave a bubble for heat expansion in the fluid, mine had one but it disappeared
Awesome!!!
You can’t do it with a pro master automatic?
you CAN´T do it with automatic, solar or kinetic watches
just and only quartz watches can be immersed in oil
And what is the difference between filled with oil and not filled? Visually, there are no differences.
can we oil fill waterproof cell phones?
погрешность будет ,то ли по воздуху стрелку толкать то ли через масло
I think it might not "pop" because of the material used in the crystal.
what kind of watches can you do this to?
CASIO! :)
Looking for a computer 2 name misc watch somthing made in 80s was sold on TV
O do not recommend doing this on a analog watch.
I did on some digital easly, but analog has problems. Forst, you get to pill the crown everry other month to adjust the date. Second, the lifespan of the battery would be reduced.
Better do it on a digital solar and never open again.
Last: you should allow to some bubble inside as it will compensate for the volume increase whem temperature changes, or cristal could be loose
has anyone ever tried doing this with pure alcohol instead of oil
Now change the battery...
Exakt hahah
😮
Messy if you need to change a battery.
My watch stops running anymore 😪 . Don't do it please.
also, once you unscrew it, the oil will leak out...this is super messy
Johnsons baby oil!
A better driver watch im a fisher man hahaha
I just use baby oil.
Херня! Не делайте так с часами имеющими секундную стрелку. Секундная стрелка встречает сопротивление масла, двигается с затруднением, и часы отстают. Я заливал масло различной плотности, сразу отставание часов заметил при заливке масла вязкостью в 100 сСт, далее я заменил масло на вязкость в 5 сСт, и часы всё равно отстают. (на меньшее время, но отстают) Короче - заливка масла подойдёт если вы заливаете его в часы БЕЗ секундной стрелки, или в часы с электронным дисплэем.
Салам Игорёк, подскажи, разве оно будет держаться в них при нажатии кнопок??
Это же масло, оно найдет дорожку где угодно если есть возможность.
@@alexgloba9.90 на мне сейчас часы G-Shock GW-B5600, я залил в них вязкое масло 2 года назад, кнопки нажимаю каждый день,признаков утечки масла не видел ни разу! Оно и понятно, это же G-Shock, у этих моделей внутренняя начинка не контактирует с внешней средой..
Но есть у меня и другая дешёвая модель Кассио, не джишок, туда залито жидкое не вязкое масло, так вот там масло подтекает, я не могу понять откуда.. Подтекает после того как они нагреются на солнце, и остынут ночью.. На даче на окне оставляю, приезжаю через неделю - масло на одну четверть убежало.. Так что я думаю протечки зависят от того герметична ли начинка от внешней среды, это решает производитель
silicon destroys most rubber and plastics
🤦♂️🤦♂️🤦♂️🤦♂️🤦♂️🤦♂️🤦♂️🤦♂️
🕰 👍
Hi *комментарий*, 😃
What a waste of money, accept from making it waterproof exeeding any watch on the planet in doing so.
Not much fun when it starts slowing down the movement, bringing it to a standstill. DONT DIY OIL FILLED.
Come on now, it's not hard. Sinn is pronounced with a "Z", not an "S". To be taken seriously, basic stuff like this is a no-brainer.
I just oil filled my Apple Watch.
seems a stupid unnecessary thing to do to me, these look like quite cheap watches, and the oil must make them run slow, if at all.
Bullshit
I’d use a deeper container so the dial and case back can be rotated to get rid of bubbles. That’s use more oil of course.
I have done this on two watches. Once on a quartz Casio Marlin and once on a Casio G-Shock ani-dig watch. Only do this mod on a fully digital watch. Even the thinnest silicon oil will add resistance enough to drain the battery on an analog quartz watch. On both of mine, with new batteries, they died in 6 weeks. After a thorough cleaning and fresh batteries, they worked fine. A full LCD would be great.
Replacing the battery will be messy
This is great for Quartz, not Digital
This is by far the best and most informative video for oil filled watch mod. Excellent job.
Hi Ronnie, thanks.
Very interesting, I would imagine doing so would make the watch more water proof in a way, right? Also won’t the oil cause friction and delay the whole watch by a bit over time? Also what happens when you change the battery? I’ll you need to have extra oil at hand to fill to avoid bubbles during battery changes, also would this work with a mechanical watch????
Does oil leak from the buttons or the crown when you pull it out to adjust the time?
That wouldn't be a very water resistant watch if that was the case..
@@20cent so even when you pull out the crown the oil stays in the watch? Oh I'm surprised that's really cool.
Can one do this to a solar-powered watch? I ask because I don't think I'd like to do a do-over every time I need to replace the battery. If not, I'd recommend replacing the battery with a new one before doing the mod to make it last longer before the next reapplication of oil. Nice video and thanks! Thumbs up!
That looks great!! Does it effect the battery life or accuracy ?
Battery life yes accuracy no is what I've heard
@@murcielago1029 Does it effect battery life even in a digital watch?
@@greggreg2458 yes… there arent batteries in mechanical watches lol
@@murcielago1029 quartz watches do exist.
@@MFRiley I suppose I mean "automatic", honestly I thought "automatic" and "mechanical" meant the same thing. My comment was meant to highlight that every digital watch has a battery. All digital watches (such as quartz) are going to have a battery and the battery life is affected by this technique. How fast it kills the battery, I'm not sure.
ok, but what happen when you extract the crown for adjust the time? the oil escape?
I was wondering this myself.
Think you should adjust the time before putting everything in
@@dyslexicbien so I think should be better a no-date watch ?
with Mine?..I made a "Rolex Submariner" style watch into a Oil filled to test it, it has a rubber O-Ring on the Crown shaft though not just a metal on metal seal... it seems to hold everything back OK when I change the time/date, I could imagine some air working its way into the case eventually with multiple changes...but so far?..it's held up ok!.
@@daalvares if you angle the watch correctly when changing Date/Time (crown pointing UP/High) then You should be OK for a FEW changes, eventually though?.. air would work its way into the case with Multiple changes, but that's a quick painless fix.. 10 mins every 6 months?.. MAX!
Watches look great man, I was reading that you can put the MRW200H dial/movement into the MDV106 body, maybe try that next so you get the look of the 200 in the Duro body, might be worth a video :D