Full plate watch, Suitable tool for adjusting & testing pallet stones?

[JohnR725]

10 hours ago, mbwatch said:

Yeah - it's a 42 degree lift angle, measured visually. And remarkably it runs with the same amplitude, a weak 175 for >30 hours. Just chugs along and keeps time in 2 positions. I'll figure that one out another time.

One of the problems with watches made before timing machines and vintage watches would be do they really have to have 300+ degrees of amplitude?

 

 

[Randy55]

On 4/27/2025 at 10:09 PM, nevenbekriev said:

This Potence tool is so ingenious, but actually, the traditional way to do the things is much more simple.

Well I would think that depends on many factors. This was the same Potence clip my father made when he attended the Bulova School after WWII, so maybe it's just that different places teach differently

[JohnR725]

1 hour ago, Randy55 said:

This was the same Potence clip my father made when he attended the Bulova School after WWII, so maybe it's just that different places teach differently

I had to go back and verify what were talking about because I wasn't sure with the terminology what exactly you are discussing. Then yes depending upon where you are on the planet and when you are there is all sorts of differences. When I was in school the instructor George showed me how to make one.  Such a simple device to make and so incredibly useful for 18 size full plate watches I wouldn't think of putting one together without it.