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Found 3 results

  1. Just uploaded a new video. this one concentrating on correcting beat error.
  2. I have just posted a new vid on YouTube. This one takes last weeks video a bit further and shows the basic operation of a Timegrapher timing machine.
  3. I am continuing with my restoration of early IWC Cal. 64 and Cal 64T watch movements. Even after cleaning and oiling the timing is often out by more than the index lever can accomodate. Today the movement was running slow, however, the timing screws on the balance were each 3 turns unscrewed. This provided me with the necessary adjustment to increase the beat rate. But it can be a fiddly job, particularly for my unsteady hands. Here is my solution - a small clamp to hold the balance while I turn the screws with a 0.5 mm Horotec driver : The base is milled out of Delrin (Nylon), the finger clamp is from copper-beryllium shim with a thin leather lining on the balance side. The screw-down piece is made from a from a pocket watch stem and crown. Here it is under the x20 binocular microscope with perfect vision and access to the timing screws.
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