The Vintage Wrist Watch Company has dated this piece to the 1910s.
The chain measures 31cm long including the T-bar and the clasp. The T-bar is hallmarked for 1902. Each of the links has the lion silver mark, and one has the hallmark for Chester 1916.

The chain comes with a beautiful quality silver fob with rose gold wash detail to the front. The fob is free from any inscriptions. It measures 29mm wide and 29mm high excluding the loop.
Total weight 45g.
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