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Is this your first watch you have serviced? If it is you may be over reaching a bit. I would suggest keeping it safe and buy a few 'ebay specials' and try your hand at them first, this is quiet a complicated watch and I still wouldnt touch it even though I have been studying watch repair for the last 2 1/2 years

Your connections are correct, but math is not :). Center wheel and canon pinion rotate together. Canon pinion drives minute wheel which drives hour wheel. But the minute hand is attached to the canon pinion. The minute hand (and hence the canon pinion) make 1 rotation per hour! The fourth wheel (with the seconds hand attached) will rotate once per minute

Hey, I have a Zenith 220S and the hands are in pretty poor shape, it seems like there is a lacquer of some sort on the hands which is flaking off. The lume is also chipping off. I'm wondering if it would be possible to dissolve the lacquer in Hexane/IPA or is this possibly oxidised/tarnished playing I'm looking at? Thanks in advance guys, sorry about the poor pictures Sent from my Redmi 4X using Tapatalk

Crap, you are correct. It's the gear over the pinion that holds the hour hand...I should know this:) Sent from my iPhone using Tapatalk Pro

No. No it doesn't. Not by any stretch of the imagination would any non mechanically minded person consider anything he does in those videos easy. Not once you can see the actual size of the parts involved. That said lots of it doesn't look impossible either. But I get what you're saying, this one needs to go to a pro. Actually I just looked at some of the asking prices for similar working models and I hadn't realized these had retained such value. i was thinking it was worth £50 or something

Be reassured than plenty of people here have the same or better background, still have found the hard way that mov.t repair and service has a steep learning curve, and they break and lose a lot of parts before getting it right. Not to mention the absolute need to have the right tools and materials, and working environment. In Mark's videos everything appears easy because that's exactly his objective. And not only he's very good at what he does, he also shoots professional video with heavy post-production. Each one is entitled to do what he wants with his property, but for an absolute beginner starting with a sophisticated and expensive mov.t is objectively a big mistake, and you should listen to what people is telling you here. That being said I know that these words have often the opposite effect on Western males, stimulating pride, challenge and high self-esteem instincts. We have plenty of threads here started by guys with your same attitude, guess what, none had a positive follow-up or follow-up at all.

See below... I had to think about this a while - I always get it mixed up, but I still say canon pinion holds minute hand

Hi Ricardo, I wish that you had taken the advice of jdm. Well, it is your watch so go carefully with plenty of mechanical sympathy. Best fix some cheap watches at first to get the practice and know how. good wishes, Mike.

Hi Ricardo, your Tag is too expensive a watch to make a start on. Take the advice of jdm . You may have a HS problem or very likely a broken balance if the drop was hard. In either case if you are just starting then work on cheapo movements until you develop your Watch repair skills. All good wishes, Mike.

Since it appears that you never worked on watches before, I absolutely recommend that you will not try to repair your valuable watch by yourself. There are really too many chances to do even more serious damage than what it has already.

Welcome here. Since it appears that you never worked on watches before, I absolutely recommend that you will not try to repair your valuable watch by yourself. You have really too many chances to do even more serious damages that what it has now. I don't think Mark is taking work at this time but you may ask him anyway by PM. There is another experienced member from Thailand but he has not posted in a long time and I don't remember his nick right now. The official service center is T.S.L. International Co., Ltd. 159/33 Serm-mit Tower, 20 Fl Sukhumvit 21 (Asoke) Klongtoey Nua Wattana 10110 Bangkok Thailand OPENING HOURS: Monday to Friday : 9.00am to 5.00pm PHONE: +66 2 661 7272 FAX: +66 2 661 7474

Sometime the pin pusher tools have a tip too small. In that case simply tap with a jeweller hammer on a proper size punch, keeping the bracelet on an holed block. There can be dirt and rust blocking it so it can be a good idea to leave it in alcohol or acetone for a day before.

I do not recommend trying poising the balance on Seiko mov.ts, especially for beginners. That is a way too difficult and advanced task, and results are not guaranteed, meaning that is a lot easier to do worse than better. Beside 7S, 4R and 6R are all mass produced mov.t s not intended for this type of adjustment, which makes better sense on a balance with Breguet hairspring and microweights on the rim. Assuming that the hairspring has absolutely perfect geometry, simply turn slightly the Etachron regulator (there is a tool for that but reportedly it's the wrong size for Seiko) in either direction and repeatedly regulate and test dial up and crown down. A variation of 15 s/d (usually crown down is slower) is already good and fully within specifications. Consider that conventionally the natural positional error caused by laws of physics is 10 s/d. You can somehow trick around these laws, but not beat them. And, as mentioned, the last test is on the wrist in at least a week of normal use.

The top pivot of the pallets has broken. So you need new pallets. Many members on here use https://www.cousinsuk.com/ What you call the oscillator. That is known as the balance complete. That whole balance has to be clean, any little hair or oil will cause the hairspring coils to stick togather and the timkeeping will be erratic.

There is no easy way. to explain this. This I think will help you. http://raulhorology.com/2012/12/the-mark-of-true-watchmaker-hairsprings-part-3-forming-the-terminal-curve/

Correct - your issue is certainly in the motion works given that the second hand continues to operate. So your first stop should be the canon pinion. See my previous post for other considerations. You're getting close!!!

Very nice, Pultra's are high quality machines, they were a brand of Smart Brown who rank among the finest lathe makers, ever. I'm pretty sure that lathe is 8mm, despite the name. Tony's lathe site explains it all - the 8 and 10 geneva lathes were both 8mm. Can you measure the body dia of a collet and let us know? http://www.lathes.co.uk/pultra-8-and-10/ As for drilling, I don't think its going to happen readily with that tailstock. Few 8mm lathes seem to have that function - tailstock collet mounting. The reason is (afaik) that its not really needed, holes are made by make a making a small centre mark with a graver then drilling with the drill held in a pin vise. The hardest part is make the centre without a pip in the centre of it, but ounce that is figured out its quite easy and being handheld, is very sensitive which is needed for small drills. Pultra definitely made a 10mm lathe - a shot of mine is below. its a treat to use, its a bit bigger than the 8mm collet lathes https://imgur.com/EVGFDOG