[nboyer]

Hello folks. I recently finished a project watch that was setting on the bench for some time. The issue I'm looking for help on is a timing related one. I've regulated the watch to -3 sec/day and decided to stop. I left it on the timing machine to periodically monitor over the course of a few hours. It was pretty consistent. I came back to the watch the next morning (about 10 hours or so later) and the time is off by about an hour. I put the watch immediately on the timing machine and it showed around -4 sec/day. Any ideas on how to proceed to troubleshoot? This was a project watch purchased from an auction site, so I have no history on the watch. Could it be that the someone may have interchanged a center, third, or second wheel from another model with different gear ratio - is that even physically possible? Whats else would cause this sort of loss? Any help appreciated. Cheers. -Norm