Loupe / eyeglass / eyepiece
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By rjenkinsgb · Posted
This place has them, cheaper than I saw on ebay and they appear to be a legitimate supplier: https://maddisonsofdurham.co.uk/watch-parts/capacitors/seiko-batteries-capacitors/seiko-capacitor-kinetic-30235mz-tc920s-5m42-5m22-5m23-battery-3023-5mz-3023-5my/?gad_source=1&gclid=CjwKCAjw7-SvBhB6EiwAwYdCASmviGb9G2ZGW3CtcUZBkNgglcgfPKoqnpOzrzruiPtm69f6DX7UGhoCKl4QAvD_BwE There is also a note at the bottom of the page about them being a newer type, with a slightly different part number. -
Are we ignoring that another watch on tg showed similar rate fluctuation. Did I miss any conclusion made on this sigificant point ? Springs have high fatigue threshold, meaning angle of bend/distortion has to be very sharp to cause material fatigue . An evidence to this point is the bend we form at end of terminal curve or the bend at the collet, are we causing fatigue there? definately not.
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Yes, I do have the Seitz pivot gauge which is worth a small fortune these days. Got mine for about £200 which I thought to be crazy expensive at the time, but I've now seen asking prices over twice that. And no, I do not have the scaled pin gauge, but it would be convenient. Let me know if you find them! Anyway, the Seitz pivot gauge is in my opinion not really necessary if you have the JKA Feintaster. It can measure even the very small pivots w/o making any dents. One will have to be a lot more careful when using the Bergeon micrometres.
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By hofnerpres · Posted
Update. Ran into a winding problem since some desperate previous repair guy had fitted the wrong winding gear. Cousins had one ! Turns out the movement is the slightly different 022 - 18 Looks like the one LH screw fixing for the crown wheel got updated to the two screw style. -
By luiazazrambo · Posted
Didn't you see the impact on your time machine? 🙂 Nobody told me this / or read it in any books but whenever I have a reading like yours one of the first things I check is the plate screws and in the majority of the cases the readings get better after tightening them, smoothing out your curves. If they are tighten enough it makes no sense to tighten them more as it brings no benefit but excessive force might cause the screwheads to brake off. You have the feel for it after a while. I have seen cases where the plate screws were not tight on purpose just to sort out some end shake issues but needless to say that's not the right way to go. Plate screws must be tight enough just like the critical screws in automotive otherwise you screw up the whole movement in my opinion. I must stress that this is only my own opinion and i am just a hobbyist.
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