Omega Seamaster 300 case back authentication

Posts
98
Likes
22
Found some case back
I cant identify this so want some professional advice please
 
Posts
24,762
Likes
55,003
Funny, you also see this "waterproop" error on fake Fortis supercompressor case-backs. Although usually someone completely obscures it using a polishing wheel.
 
Posts
30,092
Likes
77,671
Waterrroop?

We have apparently gone from "certifed" to "waterroop" as the typo de jour...
 
Posts
1,846
Likes
4,453
We have apparently gone from "certifed" to "waterroop" as the typo de jour...
That is a custom title for a while!