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margolisd last won the day on April 4

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About margolisd

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  1. Hey. I might buy it from you if you have one. Case ref is 511.016. It's a 620 movement. Diameter of the dial is 17.5mm. Message me if you have one
  2. This little cocktail watch was an eBay non-runner. I cleaned it, oiled it, replaced the mainspring and worn barrel arbour, fixed a bend in the hairspring, reduced the hole size in the minute hand, new crystal . And I also did some dynamic poising. I've got it running within 15secs per day in all positions. It's by far the tiniest movement I've worked on. Everything else seems comparatively huge now! The only annoying thing is I accidentally rubbed off the Omega logo whilst attempting to clean the dial
  3. Old Hippy, you're the best at finding things. Thank you!
  4. Does anyone have an oiling chart for the Omega 861? I found the technical guide which is useful. But a proper oiling chart would be brilliant if someone could share it as a PDF.
  5. Look how badly the escape wheel was worn! Obviously the old one on the left and new one on the right!
  6. margolisd

    David's Watches

    Some watches I've worked on.
  7. That's a great approach Rogart. I spent a bit more time using my technique. It looks fainter than the original but I'm relatively happy with it now. I could probably get it better with coarser sandpaper. But then that might just highlight the imperfect lines. I really need a lathe.
  8. Hi guys. I have a cosmetic question. This 1970s Omega Dynamic has a kind of radial sunburst brushed metal looks around its edge. I've been trying to restore it today. I polished it down to get rid of all the nastiness. But I've really struggled to find a good technique to get the brushed effect back onto the polished surface. I ended up hot gluing the case to a platform that fitted into my jeweling tool. And after centring it I used thin strips of sandpaper to try and create consistent strokes and rotating the case a tiny bit at a time. It looks better with the the worst nicks and scratches gone. But the brush lines aren't as good as they were originally. How might this look have been achieved in the factory? And is there a less hacky way I can improve this?
  9. It was very erratic and hard to quantify. But I'd say around 10% of the beats were completely wrong. The replacement escape wheel and pallet fork arrived. Fitted today and wow, what a difference. I put the escape wheel under the microscope to compare it to the old one and yeah it was completely worn. Thanks everyone for the advice.
  10. My Seitz jeweling tool has a fitting for this very purpose. I might try this just for fun. I'm still going to replace the escape wheel as it's super worn and the fork for the sake of good craftsmanship. I found them new on eBay for a few £s so it seems sensible. Here's a question, with a 1970s Omega, how likely is it I'll need to adjust the pallet stones on the new fork? I know the parts are less interchangeable on very old watches. But I'd presume parts from this era are made with high enough precision so it should in theory just work(?) Has anybody used the Begeon Pallet Alignment Tool or similar? I'd love to know how it works.
  11. Impossible is my middle name.
  12. ...Or change the pallet fork height by a few microns so the escape wheel touches a fresh area on the jewel.
  13. Just out of interest, is there any reason we don't use synthetic diamond as pallet stones?
  14. Yes, this occurred to me. The stone is much harder than the escape wheel so it would make sense that it is even more worm. I've ordered both. Yes, the mainspring has been changed as well You could be correct. I'm going to replace the pallets anyway so we'll find out. But thanks for enlightening me on this subject as it's not something I've read about so far. Thanks OH. My process is: Clean. Epilame the escape wheel and the pallet jewels (the jewels only) I oil the balance end stones with 9010. I have always used a spot of 9010 on the escape pivots and the fork pivots just to moisten them. I get the feeling this is a divisive issue! I guess I'll stop doing this. Assemble and let it run dry for a good few minutes. Finish by putting a little 9415 on the pallet stone faces. Thanks all for the advice. Super useful as ever!
  15. Interesting. I normally use a little 9010 on the pallet cock jewels
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