Elgin balance staff 12s 5317 pivot 10

1 Elgin balance staff / 1 axe de balancier Elgin

Neuf de stock / New old stock
Cal : 12s 5317

Pivot 10

Original Elgin part / Factory sealed packet

Size 12s

If you are not sure of your caliber, you can check it on the following website (open the link) :

https://pocketwatchdatabase.com/guide/company/elgin/serial-number-lookup