Ebauches SA Balance Staffs (3) for Felsa 11½ ligne caliber 4550 & variants - new

Ebauches SA Balance Staffs (728) for 11½ ligne Felsa caliber 4550, 4552, 4560, 4562 movements, package of 3, new in package. See images for further details. Oh, and it is really easy to confuse caliber 4550 with 4450 so double check what you need. I specialize is hard to find watch parts so I'll usually have whatever you might need and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item.