The Vintage Wrist Watch Company has dated this piece to the 1920s.
The watch has a Swiss 15-jewel hand-winding movement which is working nicely. The movement is signed with the Rotary wings logo.
The watch measures 29mm wide excluding the winding crown and 29mm high excluding the lugs.

Rotary Watches Ltd was established at La Chaux-de-Fonds, Switzerland, by Moise Dreyfuss in 1895. By the 1920s family members Georges and Sylvain Dreyfuss began importing Rotary watches to Britain, which was to become the company's most successful market.

The case is in lovely condition. Later winding crown.
The lens has a couple of small marks, not overly noticeable to the naked eye.
The textured dial with a sunburst pattern is in its original finish with original Breguet style hands, a subsidiary seconds dial and outer minute markers.
A new 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