Very impressive! Certainly the most complex watch repair I've seen yet, and you're able to name each piece and its function as you work on on it. I've never seen so many flat levers and other parts like that. I also love your sense of humor, and think it's the best part of your videos along with your awesome watchmaking skills.
Check him out on the earlier Valjoux 72C, a less evolved and much older predecessor of this caliber. Magnificent skills!!! ruclips.net/video/P4gQYifb4no/видео.html
BRAVO! One of the only times I've seen mechanics showing the beat error and the rate. You show how difficult it is to get zero error and as close to zero rate error I'm very happy with your transparency. Nobody else does this.
I have a 24 year old Sector Dive Team 2000m water proof with a 7750 movement in it . Took it in for its 5 year service and the watch makers were unable to completely strip the movement. Fantastic place this SOUTH AFRICA. Your channel is brilliant thank you.
9 complications on the dial, means a lot of gubbins on the inside! Very nice looking movement as well. I like watches with subdials, they always make the dial look interesting. Great service by a masterful hand as usual!
I work in the US Customs and found your mention of Customs and watches/jewels a great tie to my daily job. I'll be digging into that more now. Very interesting. Your videos are filled with top notch facts and I have to say top notch humor!
I like the natural way you turn all the parts upside down to see any other parts that may be underneath and have come with. Good practice for people who go in and tear down without 100% knowledge the mating parts that are going to be found, and so important where they go!
My goodness! Who knew I could stop breathing for 15 minute stretches at a time? 😵 It is staggering watching someone this talented work with such a fine instrument. To me, a movement like this is unbelievably complicated, sophisticated and beautiful---a wonder of engineering and design. It bothers me that the watch community seems to have a rather uppity attitude toward the Valjoux 7750/7751 movements as _"utilitarian / unsophisticated / only found in cheaper watches / nothing special"_ etcetera. But I digress. It is a real treat to watch someone work so confidently on something so intricate---calmly taking out part, after part after part..... Each time you set aside yet another teeny, tiny screw or wheel or other part, I kept thinking _"Nooo..... how will you know where it goes back again later?!"_ . When you got to the replacement of the hands at the end, I thought I might pass out---lol. I've always liked things to line up as they should (car steering wheels should be properly straight after an alignment!), and to see you putting all those tiny hands on and lining them up so nicely.....wow! It was the lack of lining up of the second hand of so many quartz watches from the seventies until recently that soured me on quartz. Though, to be fair, apparentlly I'm not the only one who detests this sloppiness, and from what I read on the forums more (all?) decent quality quartz watch makers now put more of an effort in to line up the second hand with the markers. Also enjoyed your modesty and lovely humour.
Hi there, thanks so much and I hope you caught your breath by now 😂 Hand alignment is indeed very important, as it is something the user will always see. The Valjoux 7750 is absolutely a product of a focus on cost saving and production efficiency, which is reflected in the very utilitarian design of it. That does however not mean that it is not a fantastic movement. It is extraordinarily resilient, it is very reliable and gives excellent performance. Which is certainly more important than beauty to the few that get to actually see it. And if there is a display back, it certainly looks nice enough when finished well. I think some of the beef some people have with the 7750 is that it is often used in expensive watches while the movement itself isn't expensive to buy. That's not the fault of the movement though, it's the fault of the brands charging premiums on the back of it... I'll be doing an Omega Speedmaster Automatic shortly with basically the same movement as the Eberhard and will be pointing out the differences and similarities then! And between me and you; sometimes I look back at the video of the stripdown if I don't remember where a screw goes 😉
Eberhard was one of the early wristwatch chronographs, as early as 1919 with a 2 register mono-pusher on up to a split second chronograph in 1930s. They produced many "seconds" in the development of the chronograph that evolved over the decades but were very innovative and beautiful in the early days on up through the 50s. Of course, now they are an independent, premium product of finely made products, still a small and exclusive producer.
One of the most fascinating watch videos I have ever seen. I'm amazed by the fine motor skills you demonstrate. I expect you could have been a brain surgeon with different training. I liked your jokes about using duct tape and Swiss Play-Doh. One day perhaps I can afford a fine Swiss automatic watch. Thank you very much for producing and sharing this video.
Hi Frank, thanks so much for watching and for your comment! I can assure you that if I had been a brain surgeon there would be a some pretty full brain damage wards around 😬 I'll be uploading more videos shortly, so stay tuned!
i enjoy the humorous comments and agree these things can wind you up no end although ive not had the pleasure of any major complications this type of work or hobby teaches patience really well
Thanks for watching and for your comment! Working with watches can indeed test your patience 😄 But you kind of get in the zone, so it's actually very relaxing.
Nice job and a really good video. I like these long-form videos where we get to see so much detail, these days so much is rushed and super quick. Watch making is all about slow an patient so I feel the videos should reflect that. And the absence of the rumble is much appreciated :-) It's a handsome watch by then end, not quite to my taste but I can still appreciate it. That movement reminds me of working on Sony BetaMax in the 90s. Lots of fiddly plates and levers and springs everywhere, and don't even think about getting one out of place!
Hi Alan, thanks for that! Time is indeed of the essence (yeah, lame pun intended)... I heard a few people say they didn't like the rumble, so hopefully the new intro fits better. I honestly agree with you for the style of this particular watch, but who's interested in the outside of the watches anyway 😏
Would like to see your technique on adjusting beat error without the beat adjuster (older models). Appreciate your time and effort making the videos it helps a 57 year old beginner like myself tremendously.
Hi Edward, thanks for watching and 57 is a good beginner's age for watch tinkering :) If you check the Hebdomas video you will see how to adjust the old type movement without a mobile stud carrier, in the safest manner. But unless the best error is high your might not want to fiddle with it, as the chance of messing up the hairspring is pretty significant.
Great work. Really pleased you've dropped the 'Let's Get Ready to Rumble!' at the start - it really jarred with the tone of the videos. Interesting, informative and relaxing - great to listen to somebody who really knows their stuff.
Hi Jasebha, thanks for watching and for your comment! I thought it would be fun to have something completely opposite of watchmaking for the intro, but indeed got some comments that it wasn't that great... So hopefully this works better :)
Yours was the first video in a LOOOOONNNNNGGGG line of watch repair videos I have watched over the last few months that actually went into detail on both adjustments for the regulator. I had no idea, and was surprised at that information lol THANK you :)
I don't think I have seen a watch with so MANY parts!! It is a beauty though....I'm going to have to see how much they are going for. The dial and hand combination look exquisite.
Hello, first of all thanks for showing how to regulate the beat and speed , I thought you forgot was a question almost 2 months ago ! Seinfeld sometimes is good! A lot to learn! thank you !
Hello Tiberiu, happy you liked it! No, I remembered your request and I think it's something a lot of people would like to see, so I'll try to include it more often. Thanks for the suggestion!
Hi Michael, thanks for that, very nice to hear! It's a great hobby and profession and you're never too old to start doing it. If I'm ever looking the an apprentice I'll keep you in mind 😉
It's safest to make sure you understand what's going on before starting to unscrew parts, for sure! But if you have a spare movement you can work on, there's also a lot to learn by pushing your limits a bit 😁
First of all I would like to thanks you for amusing us with these thrilling informative videos it is the Paradise for watches enthusiasts ,many watchmakers are deliberately shows glims of watch repairing or limited full period for patrons only, "envious" that I always don't skip ads on your videos , Second ,are you Swiss or British cuz your English is fluent?. Thanks
The complexity of that watch is evident in the video length; twice your 'normal' time. I really enjoyed it and learned a lot about the movement. I have a Sinn chronograph with a (high grade) 7750 that has been nothing but trouble. First the hour counter refused to stop counting even without the chronograph engaged. I sent it to Sinn (USA) and it came back from the service with the same problem. Back it went and they told me that the guidance had changed and the brake and the hour counter wheel had to be replaced together. It worked nicely for a year and then the chronograph second hand developed a 'stutter' and now the chronograph doesn't count accurately despite it keeping regular time nicely. I'd moved overseas by then so I'll have to send it somewhere else next time. I've read that this is a spring tension adjustment, but when it comes back from the next service it will be sold. It's a shame that such a ubiquitous movement has been so troublesome for me as I otherwise like the watch.
Hello Shane, thanks for watching! The hour counter wheel is indeed a commonly worn part on the 7750, so on a watch that's maybe 15-20 years old the chance of it needing replacement becomes increasingly higher. The seconds hands stutter and irregular running is not that common of an issue though, especially since it developed over a year. My guess would be there's dirt interfering with it.
Super watch! I have of course heard of Eberhard & Co but have never really handled one. Would love to own a watch like this one to add to my auto chronograph collection . Swiss auto chronos are just what I love to collect. Still looking for a video on the Dubois Depraz module service. I would love to see how one is put together and how it works. And I would love to learn how to service the modules. I have a few watches going from a Zodiac Calame to a few Versace wares running the Dubois Depraz modules. I have an older L & R cleaning machine. But your cleaner is super nice!
Beautiful chronograph. thanks for not boring us on this long a video, appreciate all the effort. QQ, do you work on watch and talk or fix , record and talk later on?
I couldn't imagine working on something that complicated and small. If I do any kind or repair on a timepiece, it'll have to be my Vostok wall clock which is overdue for a service and cleaning. Now if I just had the tools to do it myself I would... I miss the sound of the ticking that put me to sleep on nights when the power goes out.
@@VintageWatchServices at minute 2.59 you entered the watch into the timegraph and it was measuring +297 S/D ( not 359 S/D.....sorry) before you started cleaning the watch. In the end you did not show whether the stability and accuracy of the watch in the timegraph had improved only with cleaning. That's all.
Hello sir, I quite enjoy your videos for watch repair and your sense of humor. Don't ever change, please. I have been searching for a caseback removal tool so I can open up the back of my dad's Rolex. My rubber ball just won't grip it enough to do that. Can you direct me to a store that offers this tool? Much appreciated.
How would you know about the dimple in the rotor screw? That is not something one might discover by accident. I guess the question encompasses how do watch hobbyists learn best practices in handling, adjusting, dis- and re- assembly, oiling, and parts replacement for specific calibers and the watches built using them?
Thanks for watching! You might literally find that dimple out by accident :) But indeed, it's not something you would think about if you don't know the movement. It really points to having good habits in terms of looking up manuals/tech sheets for the watches you're working on.
Abut that little pinion on the barrel, did anyone make a guess? My $£€ is that it’s for a power reserve complication that Eberhard didn’t utilise in this model. Alternatively, could it be the winch pivot for a (very slow and precise) ETA powered grapling hook, designed for daring escapes from the Swiss mountains?
If you let the watch unwind from a fully wound state, can the time-grapher give you a plot of the various deltas of the parameters it reads? Would it be useful. I suppose you could do it manually by winding a little, take a reading, and repeat until the movement is fully wound. Love your presentation, btw.
Hello Richard, thanks for watching and for your comment! Part of the testing after a service is actually to let the watch run for 24 hours and then put it on the timegrapher. Mainsprings are designed to provide even power for almost until they are completely unwound, so after 24 hours we should still see good amplitude and time keeping.
in germany we have a saying...der Eberhard hat die Leber hart...meaning , in a funny way, Eberhard has a drinking problem...the name is somewhat frowned upon for its somewhat proletarian connotation...hence maybe also the sub par sales over the years...beautiful watch though, and as always great video, nice dry humour aswell!
Hello Ben, thanks for that! It's difficult to say, but given that the watch started up by itself it was likely too much grease at some points, as I spotted very generous amounts of it. It could also simply be a bit of dirt somewhere. It doesn't take a whole lot to stop a watch movement, as the power is really quite limited.
Love your videos and especially appreciated your comments about the 7750. I’m curious if this version of the movement only has 17 jewels because it was intended for the US market, why would the day and date wheels be in German and not English?
Love your videos, including all the occasional background info! A quick question though; in the videos I've seen from you, you remove the top and bottom shock jewels before cleaning. Isn't the balance staff better protected WITH them fitted during the cleaning process? I've learned it that way and now wondering what is best haha. Many thanks, from the Netherlands!
Hi Robbert, thanks for that! It's an old saying that if you have a clock in your house you know the time, but if you have two, you're never quite sure. So you'll hear different things from different sources regarding many things, including whether or not to take the jewels out or not. I don't think there's any danger to taking the jewels out before cleaning and I also don't think there's a big benefit to it, so do as you like :)
Nice work. I really enjoy your videos. I look forward to seeing them. I have an old auto chronograph that jumps to the half hour mark when the minutes reach 20. Is that an easy adjustment? I can't find any local watchmakers who will touch it.
Hi Dave, thanks for watching! Adjusting chronographs is a pretty advanced topic, but the good thing about all watches is that everything that happens has a strictly logic reason. It might just require some detective work to find the reason(s) :) The most likely reason for the hour counter hand moving too early is that the jumper controlling when it moves isn't properly adjusted. This might be adjusted with an eccentric screw (which isn't an actual screw but an asymmetric plug that shifts the position of what it is meshing with), but it might also be that someone at some point tried bending the jumper spring etc. So it might be an easy adjustment but it might also require a bit more work. Do you know which movement it is?
@@SuperPhotoDave I believe that is the Buren 12 Chronomatic, does it resemble this one: watchguy.co.uk/repair-heuer-autavia-buren-12/ ? That's a pretty complicated watch to work on, with a lot of quirks and weak spots, and I can understand why the local watchmakers are hesitant. Most watch shops do battery changes and 2824 servicing, so something like this is a bit different! Have you worked on it yourself or have you ever had anyone work on it?
Yes. The Bulova I have was called the bullhead and your link showed the same relationship to the pushers and crown. I have not worked on it myself and it has only been serviced once. That was about a year ago. I purchased the watch used in 1978 and I wore it about a year when it stopped working. Then I put it in a drawer where it sat for over 40 years. The watchmaker who did the service passed away before I could have him adjust it and now I can't find anyone who will fix it. The man who did the service said it was a beautiful movement and the most complicated he had ever worked on.
Beautiful watch. If I remember correctly, my Tag Cv2010 had the 7750. Beautiful but very tall on the wrist and lost my assssss on the re-sale. Seems people tend to stay away from that movement.
Thanks for watching and for your comment! The 7750 family is ubiquitous, and people certainly do not stay away from it, but many watches using it are extremely overpriced. Tag has had its share of problems in the watch buying community over the last few years, and that might be part of the reason why you didn't get a good price on the re-sale.
I have a watch with the 7750 movement. I had it serviced a year and a half ago. After it was serviced it was very accurate but over time the watch has lost time. Currently the adjustment is all the way to the plus and it still loses about 10 seconds a day. I have a timing app on my phone and it shows that it is beating at 28,800 bph. What is your opinion as to why it is still losing time?
Hello Joe, thanks for watching and for your question! There are a lot of different things that can be off with your watch, so it''s not easy to say without having seen it. It might be that the mainspring is not producing enough power, something a low amplitude reading would indicate, but it might also be things like over-oiling or that a pivot is being worn through, too little endshake at a wheel etc. It's not uncommon that a watch's timekeeping changes a while after servicing as things settle in, but it shouldn't change that much. I cannot really tell you what to do, but given that you say that the regulator is all the way up to plus it sounds like the place that serviced it has tried to make it go faster, so maybe you can still ask them to see what is up. Or did you open the watch to adjust the regulator yourself?
Hello Herb, thanks for watching and for your question! They did it exactly as you probably think: by comparing the watch or clock they were adjusting to another one they knew was running well. The first timegraphers were introduced in the middle of the last century and that's also when the accuracy race really began.
Merci d'avoir regardé et pour votre commentaire! Le polissage ou non est principalement une question de philosophie et la mienne est qu'à moins qu'un boîtier de montre ne soit gravement endommagé, il doit être conservé dans son état d'origine. Le polissage enlève de la matière, ce qui changera toujours un peu le boîtier. Je sais que d'autres ont des points de vue différents à ce sujet, et ce n'est pas grave :)
Lots of shadows. Do you ever do coaxials? Can Omega put them on any movement, or do they just put them on certain ones? Advantages and disadvantages? Thx
Hello Ronny, thanks for watching and for your question! It really varies with which country you are in and whether you take the watch to an independent watchmaker or to a brand store. Our charge for an automatic chronograph like this one is CHF 250, and there would typicall be a small extra charge for new parts such as a mainspring and gaskets. If you take your watch to a brand store it could easily be twice that or more, as they tend to replace a lot of parts.
Thank you, Wendy! I'm not sure I can place my accent either... I was born in Norway but haven't lived there for almost 20 years. During that time I've lived and worked in Dutch, German, French and English speaking countries, so it's probably influenced my accent 😁
Great video, as usual! Love the watch, but that crown kind of looks out of place on it. Oh, and the Duct Tape didn't work? Clearly, you did it wrong... 😂👍
Hello Darcy, I'm actually not entirely sure, I didn't count. I believe the base 7750 has 111 parts, so with the additional day/date and moonphase the 7751 probably is around 150 parts. Which is actually not a lot considering the complications this watch carries!
Very impressive! Certainly the most complex watch repair I've seen yet, and you're able to name each piece and its function as you work on on it. I've never seen so many flat levers and other parts like that. I also love your sense of humor, and think it's the best part of your videos along with your awesome watchmaking skills.
Thank you very much!
Check him
out on the earlier Valjoux 72C, a less evolved and much older predecessor of this caliber. Magnificent skills!!!
ruclips.net/video/P4gQYifb4no/видео.html
I love Eberhard. Lovely clear video, no music. Beautiful breakdown with clear explanation at every stage.
Glad you enjoyed it!
BRAVO! One of the only times I've seen mechanics showing the beat error and the rate. You show how difficult it is to get zero error and as close to zero rate error I'm very happy with your transparency. Nobody else does this.
Yes they do, nekkid watchmaker and wrist watch revival does also.
Eine Freude solch Perfekte Reparatur einer mit vielen Komplikationen versehenen Uhr zu sehen, exzellente Qualität und Reparatur 🌟🌟🌟🌟🌟
I have a 24 year old Sector Dive Team 2000m water proof with a 7750 movement in it . Took it in for its 5 year service and the watch makers were unable to completely strip the movement. Fantastic place this SOUTH AFRICA. Your channel is brilliant thank you.
9 complications on the dial, means a lot of gubbins on the inside! Very nice looking movement as well. I like watches with subdials, they always make the dial look interesting. Great service by a masterful hand as usual!
😮 what a beautiful watch , the intricacies of the work involved are amazing 👏🏻👏🏻👏🏻👏🏻😎👍🏻
I work in the US Customs and found your mention of Customs and watches/jewels a great tie to my daily job. I'll be digging into that more now. Very interesting. Your videos are filled with top notch facts and I have to say top notch humor!
Thanks a lot and very cool to hear :)
I like the natural way you turn all the parts upside down to see any other parts that may be underneath and have come with. Good practice for people who go in and tear down without 100% knowledge the mating parts that are going to be found, and so important where they go!
My goodness! Who knew I could stop breathing for 15 minute stretches at a time? 😵
It is staggering watching someone this talented work with such a fine instrument. To me, a movement like this is unbelievably complicated, sophisticated and beautiful---a wonder of engineering and design. It bothers me that the watch community seems to have a rather uppity attitude toward the Valjoux 7750/7751 movements as _"utilitarian / unsophisticated / only found in cheaper watches / nothing special"_ etcetera.
But I digress.
It is a real treat to watch someone work so confidently on something so intricate---calmly taking out part, after part after part..... Each time you set aside yet another teeny, tiny screw or wheel or other part, I kept thinking _"Nooo..... how will you know where it goes back again later?!"_ .
When you got to the replacement of the hands at the end, I thought I might pass out---lol. I've always liked things to line up as they should (car steering wheels should be properly straight after an alignment!), and to see you putting all those tiny hands on and lining them up so nicely.....wow!
It was the lack of lining up of the second hand of so many quartz watches from the seventies until recently that soured me on quartz. Though, to be fair, apparentlly I'm not the only one who detests this sloppiness, and from what I read on the forums more (all?) decent quality quartz watch makers now put more of an effort in to line up the second hand with the markers.
Also enjoyed your modesty and lovely humour.
Hi there, thanks so much and I hope you caught your breath by now 😂 Hand alignment is indeed very important, as it is something the user will always see.
The Valjoux 7750 is absolutely a product of a focus on cost saving and production efficiency, which is reflected in the very utilitarian design of it. That does however not mean that it is not a fantastic movement. It is extraordinarily resilient, it is very reliable and gives excellent performance. Which is certainly more important than beauty to the few that get to actually see it. And if there is a display back, it certainly looks nice enough when finished well.
I think some of the beef some people have with the 7750 is that it is often used in expensive watches while the movement itself isn't expensive to buy. That's not the fault of the movement though, it's the fault of the brands charging premiums on the back of it...
I'll be doing an Omega Speedmaster Automatic shortly with basically the same movement as the Eberhard and will be pointing out the differences and similarities then!
And between me and you; sometimes I look back at the video of the stripdown if I don't remember where a screw goes 😉
I really look forward to your videos. I’ve learned a lot watching them.
Thanks for watching, Ronald and great to hear you get something from my videos! More to come so stay tuned :)
Finally , dialogue and no music ! Thank you !
Thanks for watching! 👍
Eberhard was one of the early wristwatch chronographs, as early as 1919 with a 2 register mono-pusher on up to a split second chronograph in 1930s. They produced many "seconds" in the development of the chronograph that evolved over the decades but were very innovative and beautiful in the early days on up through the 50s. Of course, now they are an independent, premium product of finely made products, still a small and exclusive producer.
I don’t comment often but love you skill and videos thanks Dave
One of the most fascinating watch videos I have ever seen. I'm amazed by the fine motor skills you demonstrate. I expect you could have been a brain surgeon with different training. I liked your jokes about using duct tape and Swiss Play-Doh.
One day perhaps I can afford a fine Swiss automatic watch.
Thank you very much for producing and sharing this video.
Hi Frank, thanks so much for watching and for your comment! I can assure you that if I had been a brain surgeon there would be a some pretty full brain damage wards around 😬
I'll be uploading more videos shortly, so stay tuned!
All you need is a diffuser and a bounce screen to make that magnificent sun "go away".
Probably a good idea, yes....
i enjoy the humorous comments and agree these things can wind you up no end although ive not had the pleasure of any major complications this type of work or hobby teaches patience really well
Thanks for watching and for your comment! Working with watches can indeed test your patience 😄 But you kind of get in the zone, so it's actually very relaxing.
Nice job and a really good video. I like these long-form videos where we get to see so much detail, these days so much is rushed and super quick. Watch making is all about slow an patient so I feel the videos should reflect that. And the absence of the rumble is much appreciated :-)
It's a handsome watch by then end, not quite to my taste but I can still appreciate it.
That movement reminds me of working on Sony BetaMax in the 90s. Lots of fiddly plates and levers and springs everywhere, and don't even think about getting one out of place!
Hi Alan, thanks for that! Time is indeed of the essence (yeah, lame pun intended)... I heard a few people say they didn't like the rumble, so hopefully the new intro fits better. I honestly agree with you for the style of this particular watch, but who's interested in the outside of the watches anyway 😏
Would like to see your technique on adjusting beat error without the beat adjuster (older models).
Appreciate your time and effort making the videos it helps a 57 year old beginner like myself tremendously.
Hi Edward, thanks for watching and 57 is a good beginner's age for watch tinkering :) If you check the Hebdomas video you will see how to adjust the old type movement without a mobile stud carrier, in the safest manner. But unless the best error is high your might not want to fiddle with it, as the chance of messing up the hairspring is pretty significant.
What a beautiful dail. I love this watch.
Great work. Really pleased you've dropped the 'Let's Get Ready to Rumble!' at the start - it really jarred with the tone of the videos. Interesting, informative and relaxing - great to listen to somebody who really knows their stuff.
Hi Jasebha, thanks for watching and for your comment! I thought it would be fun to have something completely opposite of watchmaking for the intro, but indeed got some comments that it wasn't that great... So hopefully this works better :)
Fascinating intro to a brand I knew nothing about!
Yours was the first video in a LOOOOONNNNNGGGG line of watch repair videos I have watched over the last few months that actually went into detail on both adjustments for the regulator. I had no idea, and was surprised at that information lol THANK you :)
Thanks Jack, happy to help :)
I don't think I have seen a watch with so MANY parts!! It is a beauty though....I'm going to have to see how much they are going for. The dial and hand combination look exquisite.
Hello, first of all thanks for showing how to regulate the beat and speed , I thought you forgot was a question almost 2 months ago ! Seinfeld sometimes is good! A lot to learn! thank you !
Hello Tiberiu, happy you liked it! No, I remembered your request and I think it's something a lot of people would like to see, so I'll try to include it more often. Thanks for the suggestion!
Great history of watch making, thanks.
That is a stunningly beautiful time piece.
Thanks for watching and yes, it's a beauty :)
Great job, great knowledge and relaxing to watch. Thank you.
Thanks for watching and for your comment, Francis !
Amazing video, your voice description says you’re a very patient ,thoughtful person 👍
Thanks, that's very kind of you :) Not sure my wife would agree though! 😂
Nice watch. Nice job. I really like the design of the crown. Looks easy to grip and maneuver. Also enjoyed the history lesson.
Thanks a lot, Harold! It's a nice watch indeed :) Not everyone's taste but well executed.
Always love your content. I learn more with each video. Had I the means, I'd move to Switzerland and bug you to be your apprentice!
Hi Michael, thanks for that, very nice to hear! It's a great hobby and profession and you're never too old to start doing it. If I'm ever looking the an apprentice I'll keep you in mind 😉
@@VintageWatchServices I mean, you already have the perfect, 8 year old apprentice!
You're absolutely right! I'll probably even get him to work for free or for a small candy every now and then 😁 Child labor, schmild labor...
A nice watch. I really like this one. Top quality workmanship has gone into it too.
Thanks John! It's a beautiful watch 👍
Great work and what a fantastic watch
Glad you enjoyed it!
Thanks Stian, another great video. I think I have a long way to go until I’m ready for a chronograph!
It's safest to make sure you understand what's going on before starting to unscrew parts, for sure! But if you have a spare movement you can work on, there's also a lot to learn by pushing your limits a bit 😁
Excellent job!!! Thank you for your video...
Thanks for watching and for your comment, Vincenzo!
What a great looking watch
Thanks! It's a nice watch indeed and Eberhard has a history of clean and timeless designs.
Maestros relojeros , exactitud , elegancia .
Thanks so much, Alfonso!
First of all I would like to thanks you for amusing us with these thrilling informative videos it is the Paradise for watches enthusiasts ,many watchmakers are deliberately shows glims of watch repairing or limited full period for patrons only, "envious" that I always don't skip ads on your videos ,
Second ,are you Swiss or British cuz your English is fluent?.
Thanks
Thanks for watching! I'm Norwegian, living in Switzerland with my Chinese wife and Canadian children 😁
@@VintageWatchServices that seems like a fun 😄
The complexity of that watch is evident in the video length; twice your 'normal' time. I really enjoyed it and learned a lot about the movement.
I have a Sinn chronograph with a (high grade) 7750 that has been nothing but trouble. First the hour counter refused to stop counting even without the chronograph engaged. I sent it to Sinn (USA) and it came back from the service with the same problem. Back it went and they told me that the guidance had changed and the brake and the hour counter wheel had to be replaced together. It worked nicely for a year and then the chronograph second hand developed a 'stutter' and now the chronograph doesn't count accurately despite it keeping regular time nicely. I'd moved overseas by then so I'll have to send it somewhere else next time. I've read that this is a spring tension adjustment, but when it comes back from the next service it will be sold. It's a shame that such a ubiquitous movement has been so troublesome for me as I otherwise like the watch.
Hello Shane, thanks for watching! The hour counter wheel is indeed a commonly worn part on the 7750, so on a watch that's maybe 15-20 years old the chance of it needing replacement becomes increasingly higher. The seconds hands stutter and irregular running is not that common of an issue though, especially since it developed over a year. My guess would be there's dirt interfering with it.
Super watch! I have of course heard of Eberhard & Co but have never really handled one.
Would love to own a watch like this one to add to my auto chronograph collection . Swiss auto chronos are just what I love to collect.
Still looking for a video on the Dubois Depraz module service. I would love to see how one is put together and how it works. And I would love to learn how to service the modules. I have a few watches going from a Zodiac Calame to a few Versace wares running the Dubois Depraz modules.
I have an older L & R cleaning machine. But your cleaner is super nice!
I see you found the DD module video :) Eberhard has made a lot of very nice watches and I'll be doing more of them 👍
Very good watch . Great work.
This is a technological jewell
My relativity newer Tissot chronograph has a 7750, It’s from the mid 2000s. I just did the quick wrist thing and I hear the rotor singing.
Another master class thank you 👍🏴
Thanks so much, Matt!
Thank you! Enjoyed!
Beautiful chronograph. thanks for not boring us on this long a video, appreciate all the effort. QQ, do you work on watch and talk or fix , record and talk later on?
I do voice overs afterwards
@@VintageWatchServices You are very talented.. thanks!
Thanks, that's very kind of you :)
A pure work of art and beauty I love mechanical watches you can keep your battery operated garbage give me old school any day.
thanks for the guidance
hey look, it's the 7751 longines master collection!
I couldn't imagine working on something that complicated and small. If I do any kind or repair on a timepiece, it'll have to be my Vostok wall clock which is overdue for a service and cleaning. Now if I just had the tools to do it myself I would... I miss the sound of the ticking that put me to sleep on nights when the power goes out.
Impressive work my friend, thanks.
Thanks Franklin!
Fantastic watch and job. Before to open watch 359 S/D and before????
Thanks! I don't really understand your question?
@@VintageWatchServices at minute 2.59 you entered the watch into the timegraph and it was measuring +297 S/D ( not 359 S/D.....sorry) before you started cleaning the watch. In the end you did not show whether the stability and accuracy of the watch in the timegraph had improved only with cleaning. That's all.
@@enzoiu8moa330There's a two minute section on adjusting the watch starting at around 26:30...
I had inadvertently skipped this part. Sorry if I ask. Good job
Hello sir, I quite enjoy your videos for watch repair and your sense of humor. Don't ever change, please. I have been searching for a caseback removal tool so I can open up the back of my dad's Rolex. My rubber ball just won't grip it enough to do that. Can you direct me to a store that offers this tool? Much appreciated.
Thanks for watching! You can find those tools in watch material houses such as Cousinsuk.com or ofrei.com
@@VintageWatchServices Thanks! That's such a relief...
Fantastic video! Thank-you!
Glad you liked it!
Great work !
Thanks a lot! More to come :)
Wonderful watch.
Thanks, Emil!
great job...
Hello Dominique, thanks for watching and for your comment! More to come, so stay tuned :)
How would you know about the dimple in the rotor screw? That is not something one might discover by accident. I guess the question encompasses how do watch hobbyists learn best practices in handling, adjusting, dis- and re- assembly, oiling, and parts replacement for specific calibers and the watches built using them?
Thanks for watching! You might literally find that dimple out by accident :) But indeed, it's not something you would think about if you don't know the movement. It really points to having good habits in terms of looking up manuals/tech sheets for the watches you're working on.
Stunning watch and again a nice video (plus some dry Humor ^^),thumbs up!!!
Thanks Cajetano! More to come, so stay tuned :)
Very impressive!
Thanks! More to come, so stay tuned :)
That's a really nice looking watch.
Hi Gary, thanks for watching! It's a nice watch indeed, Eberhard really knows how to make clean and timeless designs.
Lovely watch now and did you put it on the timegrapher checking machine
Thanks for sharing another great video!! BTW, I recommend hot glue for the next project instead of duct tape and superglue ....
Darn it! Why didn't I think of that :(
Just beautiful
Thank you! Cheers!
Hi could you please tell me what is this black grease you use for the barrel thanks
Hi Richard, thanks for watching and for your question! The black grease is called Kluber 125, it's great for automatic barrels.
Very nice, thank you again.
Thank you too!
Abut that little pinion on the barrel, did anyone make a guess? My $£€ is that it’s for a power reserve complication that Eberhard didn’t utilise in this model. Alternatively, could it be the winch pivot for a (very slow and precise) ETA powered grapling hook, designed for daring escapes from the Swiss mountains?
😂 It's actually the driver for the chronograph hour counter 👍
Man you know your stuff!!
Thanks a lot, Adrian! More to come, so stay tuned 😉
Wow, great Timepiece
Thanks so much!
If you let the watch unwind from a fully wound state, can the time-grapher give you a plot of the various deltas of the parameters it reads? Would it be useful. I suppose you could do it manually by winding a little, take a reading, and repeat until the movement is fully wound. Love your presentation, btw.
Hello Richard, thanks for watching and for your comment! Part of the testing after a service is actually to let the watch run for 24 hours and then put it on the timegrapher. Mainsprings are designed to provide even power for almost until they are completely unwound, so after 24 hours we should still see good amplitude and time keeping.
@@VintageWatchServices Thank you.
What a beautiful watch 😍👌❤️👍
What caused the movement to stop with the back on in the beginning?
Hi Daryl, I'm not sure tbh. There was nothing pressing on the back, so I suppose it was just that there was too much thick grease in the movement.
in germany we have a saying...der Eberhard hat die Leber hart...meaning , in a funny way, Eberhard has a drinking problem...the name is somewhat frowned upon for its somewhat proletarian connotation...hence maybe also the sub par sales over the years...beautiful watch though, and as always great video, nice dry humour aswell!
Great video, thank you for sharing. What do you think was the cause of it not running?
Hello Ben, thanks for that! It's difficult to say, but given that the watch started up by itself it was likely too much grease at some points, as I spotted very generous amounts of it. It could also simply be a bit of dirt somewhere. It doesn't take a whole lot to stop a watch movement, as the power is really quite limited.
Love your videos and especially appreciated your comments about the 7750. I’m curious if this version of the movement only has 17 jewels because it was intended for the US market, why would the day and date wheels be in German and not English?
You're right, this watch was probably not for US import, the 17 jewel version is also a bit cheaper, so that might be why they used it 😉
Love your videos, including all the occasional background info! A quick question though; in the videos I've seen from you, you remove the top and bottom shock jewels before cleaning. Isn't the balance staff better protected WITH them fitted during the cleaning process? I've learned it that way and now wondering what is best haha. Many thanks, from the Netherlands!
Hi Robbert, thanks for that! It's an old saying that if you have a clock in your house you know the time, but if you have two, you're never quite sure.
So you'll hear different things from different sources regarding many things, including whether or not to take the jewels out or not.
I don't think there's any danger to taking the jewels out before cleaning and I also don't think there's a big benefit to it, so do as you like :)
@@VintageWatchServices thanks for replying! Looking forward to your next video :)
Have you worked on the Valjoux 7734, or Poljot 3133? I have several 3133 variants. They're one of my favourites. A beautiful service, as always.
Hello Clay, I'll be making a 7734 video quite soon, but haven't done any Poljots. I was thinking of trying to find one though, so who knows 😉
@@VintageWatchServices I have a Buran that runs, but the calendar complication doesn't work for some reason.
Nice work. I really enjoy your videos. I look forward to seeing them. I have an old auto chronograph that jumps to the half hour mark when the minutes reach 20. Is that an easy adjustment? I can't find any local watchmakers who will touch it.
Hi Dave, thanks for watching! Adjusting chronographs is a pretty advanced topic, but the good thing about all watches is that everything that happens has a strictly logic reason. It might just require some detective work to find the reason(s) :)
The most likely reason for the hour counter hand moving too early is that the jumper controlling when it moves isn't properly adjusted. This might be adjusted with an eccentric screw (which isn't an actual screw but an asymmetric plug that shifts the position of what it is meshing with), but it might also be that someone at some point tried bending the jumper spring etc. So it might be an easy adjustment but it might also require a bit more work. Do you know which movement it is?
@@VintageWatchServices Yes I do. It's a 1973 Bulova Auto Chrono and the movement is EFAD 14 caliber 11. I think also called Buren 1282.
@@SuperPhotoDave I believe that is the Buren 12 Chronomatic, does it resemble this one: watchguy.co.uk/repair-heuer-autavia-buren-12/ ?
That's a pretty complicated watch to work on, with a lot of quirks and weak spots, and I can understand why the local watchmakers are hesitant. Most watch shops do battery changes and 2824 servicing, so something like this is a bit different! Have you worked on it yourself or have you ever had anyone work on it?
Yes. The Bulova I have was called the bullhead and your link showed the same relationship to the pushers and crown. I have not worked on it myself and it has only been serviced once. That was about a year ago. I purchased the watch used in 1978 and I wore it about a year when it stopped working. Then I put it in a drawer where it sat for over 40 years. The watchmaker who did the service passed away before I could have him adjust it and now I can't find anyone who will fix it. The man who did the service said it was a beautiful movement and the most complicated he had ever worked on.
Beautiful watch. If I remember correctly, my Tag Cv2010 had the 7750. Beautiful but very tall on the wrist and lost my assssss on the re-sale. Seems people tend to stay away from that movement.
Thanks for watching and for your comment! The 7750 family is ubiquitous, and people certainly do not stay away from it, but many watches using it are extremely overpriced. Tag has had its share of problems in the watch buying community over the last few years, and that might be part of the reason why you didn't get a good price on the re-sale.
I have a watch with the 7750 movement. I had it serviced a year and a half ago. After it was serviced it was very accurate but over time the watch has lost time. Currently the adjustment is all the way to the plus and it still loses about 10 seconds a day. I have a timing app on my phone and it shows that it is beating at 28,800 bph. What is your opinion as to why it is still losing time?
Hello Joe, thanks for watching and for your question! There are a lot of different things that can be off with your watch, so it''s not easy to say without having seen it. It might be that the mainspring is not producing enough power, something a low amplitude reading would indicate, but it might also be things like over-oiling or that a pivot is being worn through, too little endshake at a wheel etc. It's not uncommon that a watch's timekeeping changes a while after servicing as things settle in, but it shouldn't change that much.
I cannot really tell you what to do, but given that you say that the regulator is all the way up to plus it sounds like the place that serviced it has tried to make it go faster, so maybe you can still ask them to see what is up. Or did you open the watch to adjust the regulator yourself?
How did they regulate watches before timegraphers?
Hello Herb, thanks for watching and for your question! They did it exactly as you probably think: by comparing the watch or clock they were adjusting to another one they knew was running well. The first timegraphers were introduced in the middle of the last century and that's also when the accuracy race really began.
Very nice video interesting to thank you
Nice!. But I wonder do you have Google-like memory or how you remember what comes on what and so on. Perhaps looking video by reversing it.
...or by stacking them in order. 😅
Both 😁
As a Swiss Chronograph 7750 caliber, I would have thought the dial face would have Geneva printed on the face to reflect the level of accuracy...
Excluding the top brands like Patek Rolex etc, which Chronograph movement is the nicest/best in your opinion.
Oh, that's a difficult one! I've never worked on the early Longines movements, but their 13ZN must be among the most beautiful ones ...
superbe rénovation juste dommage de ne pas polir le boitier.
Merci d'avoir regardé et pour votre commentaire! Le polissage ou non est principalement une question de philosophie et la mienne est qu'à moins qu'un boîtier de montre ne soit gravement endommagé, il doit être conservé dans son état d'origine. Le polissage enlève de la matière, ce qui changera toujours un peu le boîtier. Je sais que d'autres ont des points de vue différents à ce sujet, et ce n'est pas grave :)
Lots of shadows. Do you ever do coaxials? Can Omega put them on any movement, or do they just put them on certain ones? Advantages and disadvantages? Thx
Hello Jeff, thanks for watching! I haven't yet come across a co-axial but hope to do so in the not too distant future.
Desidero acquistare un orologio da polso Eberhard di occasione. Dove'?
What are the watchmaker costs for this complete service in general?
Hello Ronny, thanks for watching and for your question! It really varies with which country you are in and whether you take the watch to an independent watchmaker or to a brand store. Our charge for an automatic chronograph like this one is CHF 250, and there would typicall be a small extra charge for new parts such as a mainspring and gaskets. If you take your watch to a brand store it could easily be twice that or more, as they tend to replace a lot of parts.
Where did you get those nice brass curved tweezers?
I got them from Regine Horology, you can contact them at info@regine.ch and ask for 7A-BRA tweezers
@@VintageWatchServices thank you 👍
Great video, thanks!
Thanks, Westend, happy you liked it!
How much is the watch worth ? It is stunning 😀
Envious of your skill 👏 Still can’t place the accent but will persevere,thank you.
Thank you, Wendy! I'm not sure I can place my accent either... I was born in Norway but haven't lived there for almost 20 years. During that time I've lived and worked in Dutch, German, French and English speaking countries, so it's probably influenced my accent 😁
@@VintageWatchServices problem solved or sort of. I had thought Scandinavian ish . Anyway many thanks for replying.
A golden Navymaster certainly could shine in any watch collection. 5000 dollars? Not bad.
A solid gold one in good condition would cost something like that indeed :)
You don't take the balance wheel out first ?
Hi Jesse, I'm not sure what you are referring to?
Quite complicated job.
QED
I APPRECIATE YOUR SKILLS
Thanks Mohamed!
Great video, as usual! Love the watch, but that crown kind of looks out of place on it. Oh, and the Duct Tape didn't work? Clearly, you did it wrong... 😂👍
Darn it! 🤔
tell your son he can be the ultimate super-villain: a influencer-watchmaker on RUclips!
😂👍
I’m just fascinated about how small the parts are….and your ability to remove and assemble….
Thanks for watching, Howard! There is a very clear logic in how a watch is built, but experience and the manual helps 😉
How many pieces are in this watch?
Hello Darcy, I'm actually not entirely sure, I didn't count. I believe the base 7750 has 111 parts, so with the additional day/date and moonphase the 7751 probably is around 150 parts. Which is actually not a lot considering the complications this watch carries!