The Vintage Wrist Watch Company has dated this piece to the 1920s.
The watch has a hand-winding movement, identified as being by Omega, which is working nicely.

The watch measures 33.5mm diameter excluding the winding crown and the articulated lugs. The case is nickel. The inside of the case back has the early Omega logo. There is minor marking but overall the case is very acceptable for such an early piece.
The lens is in lovely condition.
The dial is in very nice condition.
A later leather strap has been fitted.
The watch comes in a new presentation box.
The Vintage Wrist Watch Company has dated this piece to the 1920s.
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