The Vintage Wrist Watch Company has dated this piece to the 1910s.
The watch has a stem-winding movement, identified as by Omega, which is working nicely.

The watch measures 40mm diameter excluding the winding stem and the loop, so smaller than a standard pocket watch which measures 50mm diameter. The case is 935 silver, so slightly purer than sterling silver, and there are Continental hallmarks inside both of the case backs. The inside of the back cover also has the early Omega logo. The case is in good condition, just a hint of unevenness to the back, nothing too serious at all.
The acrylic lens is in lovely condition.
The dial has a couple of hairline cracks.
The watch comes in a new presentation box.
The Vintage Wrist Watch Company has dated this piece to the 1910s.
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