Report Yuki 3135 hairspring in General Discussion Posted February 9, 2017 · Edited February 9, 2017 by Dr Evil If you are able to remove the hairspring from the balance wheel then i suggest watching this video and jump to 7:25 and try that test....
Yuki 3135 hairspring
in General Discussion
Posted · Edited by Dr Evil
If you are able to remove the hairspring from the balance wheel then i suggest watching this video and jump to 7:25 and try that test....