mac_omega
1375
IMO the box and the watch
IMO the box and the watch are of different age - yes.
It is a very nice box though! This was the reason why I bought some of them myself...
As far as the case back is concerned: I am sorry I can not tell you anything about - I have never seen this kind of case back.
But I am sure that some of the experts will chime in soon - just be a little patient 
regards
Erich
Strange Omega bumper back case and box:-)
Hello all, I was sweeping internet for some new bumper automatic watches and I run into one from USA. Yesterday it knocked on my door On the pictures it was not clear that it has ref. nr. and I didn't ask. I checked vintage Omega site and for cal. 344 it ...
I can only tell you...
Hi, I have never seen a case back like yours with this odd triangle... I can only tell you something that I have observed about tis type of boxes: they are a nice combo of gilt brass and purple velvet. I have bought 2 or 3 of them (not quite sure about th...
Hmm,so case and watch do not fit
So you are saying that the watch and case are misfit? This one came from USA and I should only clean a box a bit to make better appereance. Was Omega making some replacement back cases?
IMO the box and the watch
IMO the box and the watch are of different age - yes. It is a very nice box though! This was the reason why I bought some of them myself... As far as the case back is concerned: I am sorry I can not tell you anything about - I have never seen this kind of...
Earlier Brandt Family Mark
As far as I have been able to ascertain, the small tri-angle is the early makers mark of Centrale Boites in Bienne. The company was a separate entity owned by the Brandt family. Later we see the company mark CB appear. Hope that's useful Cheers Desmond
Thanks a lot
Hello monodec, Thank you very much for that information. That makes it more legitimate Omega case. Do you know in which period was this small triangle used insede the case? Regards Denis