WATCH REPAIR TUTORIALS & INFORMATION

Ah ok ok his beef is against static poising with bench tools, not with dynamic poising to correct the running watch.

Have always loved fixing things, cars mostly but also as a joiner...- take stuff apart, put it back together better - . And then my grandfather's watch that nobody wanted to fix in my town.  And I love puzzles . My kids say if dad cant fix it nobody can,   this ere proves it !

Yeah I thought so too. It seems to be original since the paint is the same. My theory is, that it is either some sort of an attachment point for an indexing assembly or for a collet closer like this one.

Hi, yeah I have done a lot of researching there

That was the intial reason I used mine the one time, timegrapher wouldn't pick up a signal, but it turned out to be something else. For fairly rare events like this, you're probably better off using Nicklesilver's method, or use an accurate pocket watch to match the oscillations up to. I think the tool is best suited to folk that time balances regularly, as would have been the case years ago. Maybe for small companies that let out their hairspring timing services, that didn't have the movement to work with. At the end of the day you already have the perfect timing device....the actual movement. The tool's convenience merely saves you the time and effort of unpinning and repinning the hairspring to the stud a few times to get it right.  Providing a " Prior Idiot " hasn't fitted incorrect train wheels 😄