RK Watch Service

Omega 8900 double barrel questions

Hello friends

I’m looking to replace the mainspring of the 1st barrel Ref. 20010

I understand that it is a manual mainspring but I can’t find any reference for the dimensions.

Appreciate your help!

Hey mates

I’m trying to find out whether the lower balance shock absorber of 1220-7931 is interchangeable with 1210-7611

oddly the parts number are different

but ChatGPT insists they are interchangeable 🤪🤪🤪

Appreciate your help