Folks,
I need some parts for Elgin 12s pocket watches, and I hope someone can tell me which part numbers I should order. Here are the particulars:|

For serial number 33325590, grade 315, I need a balance staff and roller jewel (or roller complete with jewel)

For serial number 30310392, grade 345, I need a mainspring (Dennison numbers: height, 11 or 12, thickness, 4, length, 20").

I have the watch material book from Swigart, but I'm unsure of the balance staff, really. Thanks for your time and help,
Pete

Peter,
For the grade 315, assuming it's a single roller, the balance staff should be #2802. The roller jewel, #570-c, the roller complete, #2432.
The 345 m/s should be, #2339.
I should be able to supply these parts, just e-mail me.
Brian C.

Thanks Brian,
The 315 is a double roller. I just sent you an email.
Pete

Ok Pete,
I'll get back to you.
Brian C.