Fitting new balance
Posted: Mon Mar 01, 2021 1:00 pm
Hey gang,
I'm working on a Bulova pocket watch 17AE. It had a mangled hairspring when I opened it up. I tried straightening it but wasn't 100% satisfied with result so I bought a new balance assembly that came with a new mounted hairspring. Problem is, I think one of the pivots may be too large for the jewel hole. Haven't tested this theory completely yet but if it is, what is my best option? If if pull the new hairspring off and put on the old balance, how does that affect the vibration? If I use the new assembly, do I polish pivot to fit hole or try to enlarge jewel hole?
jim
I'm working on a Bulova pocket watch 17AE. It had a mangled hairspring when I opened it up. I tried straightening it but wasn't 100% satisfied with result so I bought a new balance assembly that came with a new mounted hairspring. Problem is, I think one of the pivots may be too large for the jewel hole. Haven't tested this theory completely yet but if it is, what is my best option? If if pull the new hairspring off and put on the old balance, how does that affect the vibration? If I use the new assembly, do I polish pivot to fit hole or try to enlarge jewel hole?
jim