The Vintage Wrist Watch Company has dated this piece to the 1920s.
The movement is protected by an inner hinged cover (there is a slight indentation to the cover).

The watch measures 50mm diameter excluding the winding stem and the loop. The case is gold plated. There are some surface marks and a fairly gentle indentation to the back but overall very acceptable for a 1920s piece.
The watch glass is in good condition.
The signed enamel dial is in lovely condition and has blued steel hands, a subsidiary seconds dial and an outer minute track.
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