Tissot 25.9-1 movement 1958

[LeeReynolds]

I've got a Tissot movement here from 1958 (date of inscription on watch) that I'm having no luck finding information on.

It is hard to read in this photo, but what I believe to be the model code under the balance wheel reads "25.9-1"

I'm 99% sure the mainspring is broken, but I want to get a handle on what movement this is before I dig into it further.

Has anyone here seen this movement?  Does it go under another name/model?

[LeeReynolds]

I think I may have been able to answer my own question:

http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&&2uswk&Aurore-Villeret_423

Seems this movement was used by many different manufacturers.

 

[LeeReynolds]

Yep....broken mainspring.

Found a new one:

https://www.watchmaterial.com/aurore-av-423-425-426-4200-4205-4506-4207-main-spring/

 

[watchweasol]

Hi  you have located on then,    Its listed on Jules Borel  database  as a GR  1.20 - 10 - 340 - 9.5.