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One more note, a hint from pro to "pro": With such a dented pivot there are other tasks to do than poising. Maybe this pivot is the real reason of an astonishing high poise error of a Rolex.
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By Neverenoughwatches · Posted
As Frank states, static poising is to get it in the park, where as dynamic poising takes more factors into consideration by poising the balance as a whole while it is in its working environment . Its not actually that difficult to get your head around how to do it. -
Please replace "a professional" by "this person". What he doesn't know or doesn't tell: often you can find a slight out-of-poise on the poising tool that is intentional. Why? Because you do not take into account the influence of the hairspring then. His luck is that he has a balance with Breguet hairspring, that is poised itself. Else his method would work more poorly. My poising tool stays in the drawer and is used for coarse adjustments only - I use dynamic poising. No more dangerous removing and mounting of the hairspring. Additional I use PCTM instead of pen and paper: it tells automatically magnitude and exact location of the heavy point. And I do not have to remember all the rules of dynamic poising then. Frank
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Someone else may have a better idea but it looks more like a dial indicator than a micrometer. Would be useful for lathe work. Tom
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