This project is a grade 315, 12 size, 15 jewels, made about 1921.
There were no issues with the train, but it did have a broken balance staff and damaged balance jewels. It's not uncommon for an impact that breaks the staff to take a jewel or both with it.
Elgin staffs are riveted. The broken staff is cut off the balance wheel on the lathe.
The remains of the cut hub are popped off in the stacking tool leaving a tiny washer. I always save these. You never know...
Riveting the new staff...
This tool can tighten a hairspring collet. It's one of those tools that is not often needed, but does the job perfectly when it is.See the whole
album for this project here:
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