The Vintage Wrist Watch Company has dated this piece to the 1920s.
The watch has a signed hand-winding movement which is working nicely. The movement was supplied to Ingersoll by Beguelin & Cie S.A. or BTCo.
Beguelin also supplied the same movement, in various forms, to several watch manufacturers.

This particular watch measures 32mm diameter excluding the winding crown and the fixed wire lugs. The case is signed inside the case back, and it also has the case material as “platinette”... the name given for a specific white metal alloy, other companies had their own variations such as silveroid and silverine. The front and sides of the case are in good condition while there is wear and marking to the back.

The lens is in good condition.
The signed dial is in good original condition, just some darkening. Original hands, a subsidiary seconds dial and an outer minute track.
A later 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