The Vintage Wrist Watch Company has dated this piece to the 1920s.
The watch has a 15 jewel Swiss hand-winding movement which is working nicely. The movement is signed with the Rotary wings logo.
The watch measures 25.5mm wide excluding the winding crown and 30mm high excluding the fixed 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, such as this one, into Britain, and this was to become the company's most successful market.

The case is in good condition and there is nice detailing along each side.
The slight convex lens is in good condition.
The dial is in its original finish with original Breguet style hands, a subsidiary seconds dial and an outer minute track. There is a scratch between 4 and 5.
A new leather strap has been fitted.
The watch will be sent in a new presentation box.
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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