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Found 2 results

  1. I have an old Waltham pocket watch movement which is missing the impulse pin (roller jewel). I have a limited number of actual jewels and since this is just a practice movement I thought I'd try to make one out of brass. I've seen this several times in old pieces--usually a very sloppy job. So I got some brass stock of the same diameter as the "D" in the roller table, filed it and burnished it to a high gloss. Then I took a small, very fine diamond file and filed it half flat to form the "D" I then polished the face using progressively finer sandpaper on a steel block. This works fine--so far! Problem is separation of the piece from the stock. Again I used a small cutting file to do this but it doesn't leave the end very pretty. So what I've done so far is to fit the good end into the roller table. I then plan to shellac it in place and see if I can very carefully adjust the length and clean up the end. Has anyone done this before? Any suggestions as to how best to do it?
  2. Dear readers, This is my first post. I hope we will get know one another and with your co-operation we will trade the pleasure of learning for the satisfaction of sharing one's knowledge. To illustrate my story I have added some pictures below. You can see some basic tools, a partly disassembled antique 19 lignes (42.8 diameter) lever movement and the removed parts. I had never disassembled a movement before and this one seemed like the perfect candidate to experiment, but now that I have learnt to assemble/disassemble this movement, I want to fix it. After all, we are talking of a fully jewelled movement from a century ago. On close inspection several issues are revealed: broken mainspring, broken balance staff... ...and missing roller jewel. I have not been able to identify the maker, but the dial and the case (935 silver) confirm it is Swiss. The balance cock bears a factory symbol consisting of a five-pointed star connected to three lightning bolts that come out the star each in a different direction. I am aware that getting spare parts is going to be hard work, but I want to learn to solve these issues. I have measured the broken mainspring with a Vernier caliper but I cannot find a replacement in Cousinuk.com. Perhaps someone could check for me in the Générale Ressorts catalogue? These are its specifications: Height: 2.2 mm. Thickness: 0.22 mm. Length: 24 inch (61 cm). Barrel: 16.5 mm. End hole type. Any advice, guidance, comments, support, contributions, collaboration will be greatly appreciated. I will be watching this space!
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