Constant balance double

Start a new Discussion

Quick Learner from Baltimore

Aug 11, 2026 4:42 pm

Has a D marking

4 user uploaded images

2 Replies

Bob from SWISCO

Aug 16, 2026 8:17 pm

It looks like you have a 15-177 Pivot Shoe, which works with Series 152 Coil Balance springs sold separately. Let me know if you have further questions about this hardware.