Hoping you could help me with this vintage Omega "trench watch" that I'm looking to buy. It looks rather suspect to me, but the seller insists it's real.
Case measures 35mm, 38.5mm w/ crown
There doesn't appear to be any glass, but the glass on the hinged case is crystal
Looks like the case was made by Bevet
Serial number: 5311681, which indicates it was made during WWI
Asking price: $460
I've seen posts about Frankenwatches made with Omega movements, but this doesn't appear to be that, but I could be wrong. Can y'all help? Images below