The Vintage Wrist Watch Company has dated this piece to the 1920s.
The watch has a Swiss hand-winding movement which is working nicely.

The watch measures 32mm wide excluding the winding crown and 32mm high excluding the fixed wire lugs. The case is silver and there are hallmarks inside the case back for Birmingham 1923, together with a case maker's mark for Aaron Dennson. The Dennison Watch Case Company was a British company who supplied cases for various watch makers including Rolex, Omega, Longines, IWC and Zenith.

The front of the case is in good condition, just minor marking. There is an old repair where one of the wire lugs has been re-soldered at one end, giving a good strong lug. There is some unevenness to the case back.
The lens is in lovely condition, as is the dial.
A new leather strap has been fitted.
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