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I just wanted to say I've had big trouble with my P C and it must have taken me around 4 days to get it all up and working. I got some sort of virus in the thing. It hijacked my firefox browser, turned everything in text into what I think was Chinese, kept opening windows in the browser at one time I'm sure there must have been 30 windows open, as soon as I closed one more would open. I was running Windows 10 which I didn't like, so much in it that I didn't need, so now I'm back with Windows 7. Many documents have been corrupted, I do have copies on my old Laptop, so that's some consolation as many are to do with my genealogy which has taken years to obtain. I'm also using Open Office which is free and works with Microsoft Office. So for now I'm keeping my fingers crossed.

As pallet setting tools are not easy to find, I screwed a handle to an old brass pocket watch main-plate. You can sit the lever pivot in one of the holes, so that the pallet jewels sit flat on the plate. I then heat it over a meths burner. It's not difficult, but go easy with the heat - shellac melts surprisingly easy (75-90C)

Very nice watch, by the way.

Yes. You have to press hard on these. J

This is what I have https://www.cousinsuk.com/product/donegan-optivisors

Nice work mate, quick tip for you, ive had a few cracked dials like yours and have picked up a tip on cleaning them, get yourself a pack of denture cleaning tablets, 1x glass of warm water drop in the tablet and the dial and wait 3 mins take out dial rinse off and I guarantee that them cracks will be invisible. Before you start make sure the numbers are actually in the enamel as they can be lifted if you are not careful, its not happened to me yet but I'm always careful.

So for those that want to see what's inside the TimeTrax Watch pickup images attached. The sensor itself the disc is 15 mm in diameter the piezo is 10 mm. You'll notice it's covered with hot glue I suspect that's to minimize picking up audio it would have a dampening effect. It's mounted to a spring-loaded pin and I have images of it in and out so it doesn't have to go in very far it just has to pick up the vibrations. Then the one I have is considerably older which is why it has a metal movement holder versus the newer out of plastic. I was thinking now that we have 3-D printers readily available we could probably design something ourselves. I imagine a lot of the cost was having the original plastic injection molded.

@noirrac1jThe 2 pushers are for the worltimebezels..Nice watch btw, you see them more as Orient but Yashica is rare...

That's a Ronda 1221. Are the other crowns cosmetic? I don't see the stems for those. In any case, there isn't much "springiness" to the release for these. Push here....might need extra pressure.

When you pull out the crown, the release "button" rotates a bit (20-30 degrees). Put a loupe - if it rotates push it and pull the crown/stem out.

So I received the TimeTrax sensor and hooked it up real quick. It still requires a microphone preamp. I rewired a cable so that I can use the 12V lithium ion battery packs I had around for the Rolls mp13 preeamp and the output is mostly dead silent. I was getting very good results with the open source tg software compared to my MTG1900 time grapher. Watch-o-scope was having some little issues and the readings were a little off. I may have to tweak the settings a bit. If you are okay with shelling out $95 for a sensor, the TimeTrax is a really nice kit. It is heavy and solid. My only issue is that testing in some of the different positions will be an issue due to the design of the holder. When placing the crown of the watch on the sensor, to position the sensor so the watch is crown up or crown down will pose an issue due to the placement on the holder and the adjustment screw to tighten the clamp. I will try and get pictures to explain better. I will be doing more tests and hopefully come up with a list of parts that others may use if they do not want to build their own from parts. - Garrett

Onions are not really my speciality, and just to be clear I have no qualifications in horology either. Like the author of the link I posted, I am an engineer by qualification, and I love his approach to the problem. Since I was knee high to my grandfather I was taught by him that there was nothing which couldn't be repaired, some things just take a little more learning than others. I tend to over think and over research every problem I face and so I have read widely around the subject. Like a signature that someone else on here uses, I probably need to spend more time at my bench repairing watches and less time on the internet learning theory.

Omega with water based top coat - soaked in destilled water with a few drops Fairy - brushed lightly every couple of minutes. Before After