Double-printed caseback—what to make of this?

Posts
1,068
Likes
3,703
This 1950s (edit: 1960s) Seamaster 166.011 from a reputable and well-known seller has an odd double-stamped caseback. Has anyone seen anything like this before?

Edited:
 
Posts
29,735
Likes
35,697
That just looks like an oops in manufacturing, I thought you meant double stamped as in two references but that one is just a case of it being struck twice with one of those being slightly out of alignment
 
Posts
1,068
Likes
3,703
That just looks like an oops in manufacturing, I thought you meant double stamped as in two references but that one is just a case of it being struck twice with one of those being slightly out of alignment
Have you seen anything like that before? I agree it’s a mundane error, but not one I’d expect Omega to shrug at. I personally find it kind of cool; maybe the company didn’t consider it likely that a paying customer would ever see inside the case.