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Question: When one is looking for a replacement hairspring[say a NOS or salvage part is not going to happen!],what are and how does one determine the correct dimensions for the"new" h/s? I would assume thickness,type of steel/material,and number of coils? Also assuming that an overcoil could be formed from a flat one if a breuget overcoil was not available. Really curiuos, Sam Williamson NAWCC 154312 IHC Charter Member 14 Member Chapters 96 and 185 | ||
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