The Vintage Wrist Watch Company has dated this piece to the 1910s.
The watch measures 34mm diameter excluding the winding crown and the fixed wire lugs.

From 1 June 1907, Stockwells acted as assay agents, facilitating the import into Britain of foreign gold and silver items, which had to be assayed and hallmarked in a UK assay office before being released for retail.

The case is in good condition for such an early piece, some surface marking but nothing too serious at all.
The glass is in good order.
The white enamel dial is in very good condition with original hands, a subsidiary seconds dial and an outer minute track.
A new leather strap has been fitted.
The watch will be sent 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