Mark Posted December 20, 2014 Posted December 20, 2014 Just uploaded a new video. This one is one of my favourites, an Omega Military watch from the mid to late 40s. It had a broken balance staff, impulse jewel and the pivot on the centre wheel had a groove worn into it. I didn't film the lathe work but managed to get quite a bit under the camera. I hope it's useful to someone. Some pics: 5
Mark Posted December 20, 2014 Author Posted December 20, 2014 A gents military Omega watch with the 30T2 movement. Broken balance staff, broken impulse pin and worn centre wheel pivot. Like my Facebook page or Twitter follow for news about my videos...... From:Watch Repair Channel Views: ratings Time:18:27 More inHowto & Style
cdjswiss Posted December 20, 2014 Posted December 20, 2014 Another fine video with an excellent lesson on replacing the impulse pin. Thanks. A question: when starting from a broken-off pin how do you judge the initial position of the new jewel with respect to the roller? Is that just experience or is there a rule?
Mark Posted December 20, 2014 Author Posted December 20, 2014 The jewel cannot foul the guard pin on the pallets. And the crescent notched into the roller is for the guard pin to pass. So, naturally, the bottom of the jewel must be above the crescent. Hope that makes sense. Sent from my iPhone using Tapatalk
bobm12 Posted December 20, 2014 Posted December 20, 2014 Hi Mark, I believe this is one of the best videos ever concerning the quality and nearness of the takes! The contents is unbelievable just like the other ones, this simply highlights it with amazing quality. I learned a lot from it continuing a learning curve only made possible by your excellent videos and forum. May I ask, the plate you use to heat the Shellac -- which has appeared before in your videos -- is it something of your own manufacture or is it available for sale elsewhere? Since I got my staking tools I've been collecting all sort of goodies to work on (just waiting for a good time and some jewels) and foresee doing some of the same Shellac/heat thing you so masterly do on your videos. Thank you for the info in advance and many more thanks for the excellent Christmas gift that this video represents to us. Your labor of love is deeply appreciated. Cheers, Bob
bobm12 Posted December 20, 2014 Posted December 20, 2014 Hi Mark, I enjoyed your video so much! Thank you for posting it and provide us with one more excellent learning experience! These pictures are a nice complement to the video. Cheers, Bob
Lawson Posted December 20, 2014 Posted December 20, 2014 Another great video Mark! Lots of advanced yummy goodness in this one. ... and I believe you are using a new microphone too .... make you sound very debonair :)
clockboy Posted December 20, 2014 Posted December 20, 2014 (edited) The plate Mark is using is I suspect what I use which is an old Clock movement plate. Another point worth noting is I attended a presentation by a guy who repairs and services watches for a living at a Kent BHI. During the meeting it was asked if you can not purchase a replacement pivot that is scored on say a Rolex what is the alternative. The guy said it is quite acceptable to remove the score from the pivot on a lathe & re-jewel with a jewel that has a smaller internal hole. Exactly as Mark does in this excellent vid. Edited December 20, 2014 by clockboy 1
Mark Posted December 20, 2014 Author Posted December 20, 2014 Thanks guys. The brass plate is made by myself - just a rough job from some brass sheeting. The holes are useful for blueing screws. The channel slot is useful for tempering newly made stems after hardening.
Legarm Posted December 20, 2014 Posted December 20, 2014 Excellent. Always something new to learn. :)
bobm12 Posted December 20, 2014 Posted December 20, 2014 Thank you Mark, I appreciate the information. Do you recommend specific dimensions and type/thickness of brass sheeting or you just go by the spur (needs) of the moment, so the holes and other features are added accordingly? Cheers, Bob
autowind Posted December 20, 2014 Posted December 20, 2014 As always a first class video by a master at watch repairing and video making. I always enjoy watching a master at work be it Mark with his shellac and diamond file or Will with his guitar. :bow:
Geo Posted December 20, 2014 Posted December 20, 2014 I finally got some time to watch Marks latest horological production. As usual a quality production that I enjoyed immensely. The more I learn, the more I wish I had been involved with horology years ago. At least now being retired, I can devote a lot more time to it.
Mark Posted December 20, 2014 Author Posted December 20, 2014 Thank you Mark, I appreciate the information. Do you recommend specific dimensions and type/thickness of brass sheeting or you just go by the spur (needs) of the moment, so the holes and other features are added accordingly? Cheers, Bob It was just a scrap piece of brass lying around, drilled a few holes and filed a channel :D
bobm12 Posted December 21, 2014 Posted December 21, 2014 Thank you Mark. So much to learn! Cheers, Bob
Mark Posted December 21, 2014 Author Posted December 21, 2014 ... and I believe you are using a new microphone too .... make you sound very debonair :) Cheers mate - was hoping to attract some female viewers with my debonair voice. So far it's not working :D
Charlie Posted December 28, 2014 Posted December 28, 2014 I hope these brilliant videos never end...great work Mark your work draws much inspiration.
rustycolt Posted December 29, 2014 Posted December 29, 2014 What a genuine privilege it is to be able to watch such skilled work take place. Thank you Mark for sharing your talent with us! I'm sure the debonair voice will bring the lady watch groupies out of hiding. You should have no trouble cornering that market :rock:
Charlie Posted December 29, 2014 Posted December 29, 2014 Hmm...lady watch groupies....I must find one!
autowind Posted December 29, 2014 Posted December 29, 2014 I'm available for groupies to practice on. 1
Recommended Posts