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Found 2 results

  1. It's a method devised by Greiner in the late 50's or early 60's which allows the use of the timing machine to find the heavy spot when you have an amount of positional error. I understand that their method rendered the 'static poising' method to be obsolete (their words, not mine). In the most basic form the method is to test in 8 positions (0 to 7) in the vertical, and find the position where the watch is gaining the most. The starting position is to draw an imaginary line from the escape wheel centre to the balance centre and set the movement on the microphone with the line vertical, the b
  2. 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 cl
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