How to add images to myBulova.com forums & comments
Or maybe an interchangeable part?
Anyone's help is appreciated!
This is an in house Bulova movt, so it has no interchange with an ebauche- but anything like 10BPA, 10CBAC, 10BPAD use the same MS. I don't see anything on eBay, but I will check my stock and get back to you.
I found a 10BA mainspring.
Do you know if this ms fits a 10BPAC movement?
With regards, Sybren
No. The 10BPAC is an automatic and the 10BA is not. Automatic mainsprings have slipping bridles, which mean they are not anchored to the wall of the barrel. Manual wind watches are hooked to the outside wall of the barrel. The Bulova numeric/alpha calibre starts with two letters, and when they add letters, they are descriptors. After the intital two lettters, another 'A' means automatic, and a 'D' means date, that sort of thing.
In the calibre 10BPAC, it is a base 10BP, with Automatic winding and 'C' for centre sweep hand.
The 10BPAC is also listed as having a sealed barrel, and no dimensions are given for the mainspring. The only way to know what these are is to remove the spring and measure it with calipers, although some Mat supply houses seem to have either already done this, or have an interchange list that most of us don't have.
I have a complete NOS Bulova 10CBAC Barrel Complete. If you can use this for your watch PM me and I will send it your way.
The mainspring got mailed Friday. I hope it works for you.
I am searching for a 10BPAC main spring.
Actually for 2 main springs, since I have 2 Bulova 23's.
Does the main spring has an item number?
Is it possible to find them or to buy them somewhere ?
Thanks in advance, with regards, Sybren
I searched high and low and cannot find one . Sorry