Job Number 170045

Here is a grade 291, 16 size, 7 jewel Elgin pocketwatch, made about 1918. 

Here's a detail showing the broken pivot on the balance staff. This balance features a double roller - meaning there are two disks below on the balance. The main one, with the roller jewel, or pin, and the guard which protects against over-banking. On this balance the roller is one piece. That makes it easier to get on and off, and there's no worrying about the alignment of the guard.

See the entire album for this project here. And more horological contents here. Also, follow along with vintage watch repairs here.

The new staff is riveted to the balance wheel using the stacking set.