Jewellery, Watches and Objects of Vertu

Swiss. A small silver trench watch, circa 1917.
Movement: manual winding, lever escapement.
Dial: white enamel, Arabic numerals.
Case: silver, hinged back, no. 13855, London import mark for 1917, maker’s mark GS.
Signed: unsigned.
Dimensions: diameter 27mm. £60-£80