The Vintage Wrist Watch Company has dated this piece to the 1900s.
The chain measures 34cm long including the T-bar and the clasp.

There is also a shorter length of the chain attached which has a silver and enamel fob from Imperial Chemical Industries Limited with a image of Britannia to the centre. The fob was presented in 1935 for long service, and is engraved as such on the reverse.
Total weight 60.2g.
The Vintage Wrist Watch Company has dated this piece to the 1900s.
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