The Vintage Wrist Watch Company has dated this piece to the 1910s.
The watch has a seven-jewel stem-winding movement which is working nicely.
They came with black luminescent dials and also white enamel dials.

The watch itself measures 57mm diameter excluding the winding stem and the loop. The case is in good condition. Williamson watches had Dennison cases, which were made in England, and the serial number on the dial is repeated on the screw-on case back and also on the side of the watch.
There are general small marks across the glass lens.
The signed dial has some marking across it commensurate with its age.
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 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