Ballance Hairspring

Submitted by Gerard on October 13, 2014 - 3:24pm

When a  balance and hairspring come in NOS parts package list as complete does the spring need to be vibrated or is it ready to go.



Posted October 13, 2014 - 7:08pm

Hi Gerard. They already have the stud on the end of the hair spring and have been vibrated and are ready to go.