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

The watch measures 42mm diameter excluding the winding stem and the loop so it is smaller than a standard 50mm pocket watch.
The case is niello ware. Niello is a black mixture, usually of sulphur, copper, silver, and lead, used as an inlay on engraved or etched metal, usually silver. It is added as a powder or paste, then fired until it melts or at least softens, and flows or is pushed into the engraved lines in the metal.

The case has Continental silver marks. It is in good condition, just a small patch of loss to the niello detail by the hinge, on the back of the watch.
The glass lens is in good condition, just a small 2mm nibble on the bevelled edge.
The signed dial is in lovely condition and, as well as the black Roman numerals, it has the 24 hour numbers picked out in red.
The watch comes in an antique 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