So I got this vintage Omega with 420 cal movement (34mm case?) which I love, but the case and case back are not Omega. I do believe the case is gold filled and the case back is gold filled too, but I want to replace the case back with an authentic Omega case back.
I found on eBay some cool Seamaster case back's but not sure what size case back I need to buy. Any ideas? I found 34.5mm, 30mm, 32mm. But don't want to buy a case I won't put on a watch.
I know it’s not original, but if it’s already a donor case it’d be cool to have a Seamaster caseback.
Dimensions of some that I saw:
- 564 cal and 168.022 case
- case 135.001
- case 166.032
- Case ref 166. 0213 o 366. 0845