Possible Interchangeable Balance Staffs
The following table contains a list of balance staffs that are very close in measurements to the Illinois 772/47618 staff and might be interchangeable with slight modification. A factory-sized staff is always recommended and alternatives should only be considered in rare situations where a factory staff is unobtainable.
These balance staffs are within a +/-0.1mmm tolerance for each measurement (length, balance seat diameter, hairspring seat diameter, roller seat diameter, and hub diameter) when compared to the source staff. Vertical dimensions and pivot size may differ. Please proceed with caution when attempting to fit an alternative balance staff.
|Manufacturer||Movement Size||Part Number||Length (mm)||Balance Seat (mm)||Hairspring Seat (mm)||Roller Seat (mm)||Hub (mm)||Pivot Sizes||Image||Purchase on eBay|
|Elgin||6||868 (Old Style)||4.43||1.12||0.82||0.53||0.35||10,11||Buy Now|