I have been told that the 1570 movement in one of my pieces may need its hairspring and balance assembly replaced.
1) are these pieces easy to find?
2) are they a series of parts within a group or just two separate parts?
3) are there any other movements that these parts are interchangeable with?
4) Does anyone have part numbers for these parts so that I can begin my search?
Any suggestions where to start?
Thank you!