7750 Balance...

[GC 4,512]

Where can I buy a new Swiss Val 7750 balance spring (part 721 in diagram)?

 

I'm thinking of changing this spring in an A7750 to see if it will help with the reliability of a sec@12 movt I have.

 

Any help would be appreciated B)

 

Diagram

[KeNnY 29]

could be ok this ? http://cgi.ebay.com/Movement-parts-Timed-b...=item35adc2ce21

 

Brand:

 

 

ETA

 

Model Name:

 

 

Timed balance, regulated 721eta 7750

 

Movement Type:

 

 

Swiss made

 

Movement Details:

 

 

N/A

 

Dial Description:

 

 

N/A

 

Bezel Description:

 

 

N/A

 

Case Details:

 

 

N/A

 

Case Back:

 

 

N/A

 

Strap / Bracelet:

 

 

N/A

 

Condition:

 

 

Like new

 

Retail Price:

 

 

Water Resistant:

 

 

N/A

 

Age:

 

 

N/A

 

Model Number:

 

 

Timed balance, regulated 721eta 7750

 

 

 

Price :21.99

[GC 4,512]

Ahhhh.... ebay, why didn't I think of that? Ofrei sells them for $75, see that's why i ask you fellas B)

 

Hoping the Gen Swiss Balance can add some reliability to the more demanding sec@6 & Sec@12 movts i have been experiencing movt stops... what do you "in the know" people think? Would the Gen Val Balance have a stronger balance than the Asian ones found in the A7750s. I'm thinking along the lines of the balance is the heart of the movt so a stronger balance might help with the issues the added gearing and friction.

 

 

what say you?

[ThinkBachs 1]

It certainly makes sense to me. If things are 1:1 compatible, then it seems like a worthwhile project. Take lots of pics!