As an update to my July 17th post I am still looking for bezel spring for my Seamaster 120 37 mm. ref. No. 135.027 part no. 085st0048. Should be the same spring for ref. No’s. 145.027, 165.027 and 166.027.
Maybe there is another spring under a different part number that can be modified to work. Thanks

 

Looks like you were already told everything you needed to know in that post:

https://omegaforums.net/threads/omega-seamaster-120-bezel-spring.61285/

Now you just need to start looking