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I stumbled across this during the week and it looks useful to understand what you have/need Tom Getting_To_Know_Your_Staking_Set_by_Shaun_Clarke.pdf

It would be really helpful to list specific examples. Nobody can learn if we don't know what the exact example is. Then is getting into watch repair Is it same as learning to be a an auto mechanic? Both you can go to school for so that seems the same can we make exact same comparisons of various fields to watch repair? Well I like to make a comparison that's not to an auto mechanic. I make a comparison to becoming a doctor why? Doctors have to go to school and study. To do watch repair successfully you should read some books study learn how a watch works. Doctors get to practice did you notice they still call themselves practicing doctors many years after their out of school because there forever practicing. Typically doctors practice on deceased people they don't have to worry about killing somebody yet. Ideally in watch repair you should start practicing with a deceased watch with no intention on saving it just get some practice. Or maybe a clone the 6497 there cheap and nobody cares if it dies a painful death. Because like doctors you need to practice and initially well you need disposable things to practice with. Watch repair and becoming a doctor is very similar there a life time learning experience everybody on this group is still practicing. Some of us are better than others but were still practicing were still learning. So think of watch repair As a lifetime learning experience and nothing is going to come quick and easy. Oh then there's this other problem newbies and their expectations which conflicts with what I just wrote up above. They saw the videos they saw how easy it is anybody can learn watch repair no skill or knowledge needed. Then they come to the group with their expectations of how the group should function versus how it does and then there very unhappy the group conflicts with watch repair is easy and anybody can learn no skill required. Basically we end up with learning watch repair is an interesting endeavor. Takes a long time heck of a lot of practice like forever. Getting spare parts is a pain in the Ass for all of us nobody okay almost nobody. I know people work at Swatch group if they need a part the back room is infinitely deep. But then there also working on very specific calibers they're not trying to work on watches that span the last hundred and some years all of us have parts problems. So yes something as seemingly easy to get a part it should be easy if this is watch repair probably will not be for all of us just newbies.

This difference will make a difference. The effort to measure exactly is worth it as a link fail may cost you the watch.

Here the dimensions of the Chinese winders can be found: https://bhi.co.uk/resources/mainspringwindersjustinkoullapis/

Welp, I got the cheap set in the mail this week, and I also got 4 spare seiko 7009a movements for parts, so a good time to break some more mainsprings. They aren't bi-directional although I initially thought they were. As said above, they're definitely made for specific calibers, and the closest I could find for the 7009a barrel was the miyota 8200 set, which is honestly probably too small. There's another set where the winding barrel sat exactly on the mainspring barrel, not inside it, that might have worked, but it seemed like a recipe for disaster. That said, I managed to obliterate one mainspring through my own inexperience and testing/practising. But the next mainspring I happily got wound up and back into the barrel. Good enough for a hobbyist I'd say.

Got the tool I wanted, and I managed to get the roller jewel in place and solid. Turned out not only was the jewel loose, but there was a chip in the end. So, I removed the jewel, cleaned the old shellac off it, and cleaned up the roller table. Turned the jewel around so that the good end was exposed, shellacked it in place and made sure it was lined up. The watch is running. There is more that could or should be done to get the escapement correct, but I'm not sure how far I'm going to go with this one, have to see how well it runs. The little combination tool was very helpful for holding the roller table. Would have been a real pain without it.

https://blog.esslinger.com/stem-tap-mm-size-cross-reference-chart/

Indeed, have had to do a fair amount of bracelet and case cleanup when an old pin has failed and the watch hit the deck. When I come across pins like these I replace all of them in the bracelet now, too much chance of another one failing. Tom @whph4evri dug this out to help you with measuring to ensure you get the correct ones Tom

You really need a more accurate way to measure the diameter. If the size you need is 1.0mm, then a 0.9mm pin will not do. Get your hands on a cheap set of calipers or a micrometer.

I have serviced/ tinkered with only a few quartz movements but the principles of the service are the same as mechanical watch movements. For the lubrication I have just used tiny amounts of Moebius Quartz oil. I do have a cheap Quartz testing tool that can give the hands a rapid spin which can free the movement up for a while.

Hello and welcome to the forum If you have any questions regarding a watch/s we find it helpful if its accompanied with pictures of the said watch/s and their movements. Terminology differs as you have found out so I have attached a couple of documents which may help. TZIllustratedGlossary.pdf 1913030912_TM9-1575WardepartmentTechnicalManual.pdf

Welcome to the forum! As you are finding out, watchmaking is a deep, deep rabbit hole. It seems overwhelming at first, but the knowledge and readiness to help on this group is fortunately endless. Be patient, stick at it, help the experts to help you and you will soon have this watch back on your wrist.

They should look bigger, the old ones over time the head deforms and starts to fall out of the bracelet. Tom

Welcome to the WRT forum.

SG$ 2.06 39%OFF | 360pcs 6mm-23mm Watch Band Link Cotter Pin Stainless Steel Watch Bracelet Strap Link Pins Cotter Bar Assortment Watch Repair Acc https://a.aliexpress.com/_mqVcQB0 Try AliExpress.

Welcome to the WRT forum.

Well... When this thread started, it was $5 to £4.04, and 500 is probably the second most common HTML error code (internal server error). The current inflation adjusted equivalent to the original £4.04 is £4.70. Call the 30p buffer for the next few years' worth of inflation, and keep the numbers round?

So is my name

Heh. I'm a teapot. Maybe 451? Unavailable for legal reasons? A reference to the book Fahrenheit 451 (RFC 7725) Cheers!

Standard movement variation, Look here - http://chinesewatchwiki.net/Chinese_Standard_Movement And here - http://chinesewatchwiki.net/Hongqi_Watch_Factory Glad you got the back off.

Here's a picture of the spring in the barrel of a Waltham model 1877 that I have been working on. Hope this helps.

Got it off. Super glued a nut to the caseback as I did before but this time I put the watch in a clamp and put that in my bench vise vertical and then used a breaker bar and the edge of my workbench to pry up on one of the bottom lugs and got it to move. Still took a decent amount of force. It was risky and I could have snapped the lug or the watch could've shot out of the clamp but just the nut and a wrench alone with the watch in my vise wasn't cutting it. The gasket was both extremely sticky like glue and also completely flattened to .15mm and was totally flattened and widened so someone severely over tightened the caseback. That was by far the hardest case back I've ever removed. I'm surprised the threads are okay. Also, can anyone identify the movement? It's a Hongqi movement which is no surprise but I'm not familiar with them. Thank you all for your assistance and motivation.

Bungee!!!

Update: This thing was randomly slowing down. Finally traced to the minute wheel clutch (not sure of proper name). It was slipping. Had to open it up again and tighten.

Oh no, I always though it was India Pale Ale. I guess this explains the sticky hairsprings. Oh well, you learn something new every day!