The Vintage Wrist Watch Company has dated this piece to the 1950s.
The watch has a hand-winding movement, calibre 266, which is working nicely. The movement is signed Omega and the serial number 13,878,873 dates it back to 1952/53.
The watch is a good size at 36mm diameter excluding the winding crown and the lugs.
The back of the watch has the initials RBM. The winding crown has the Omega logo.

The inside of the case back is signed with the Omega triangular stamp and it has the case reference 2791-2, which is correct for the calibre 266 movement.
The lens is in good condition.
The signed dial has light freckling across it. Dauphine shaped hands, subsidiary seconds dial and outer minute markers.
A later leather strap has been fitted.
The watch will be sent in a new presentation box.
Free worldwide shipping
The Vintage Wrist Watch Company has dated this piece to the 1950s.
Specialists in antique and vintage wrist watches and pocket watches
You can view the stock and full dealer information on the The Vintage Wrist Watch Company Profile Page