Swiss. A nickel trench watch with hinged dial cover, circa 1917.
Movement: manual winding, lever escapement.
Dial: black enamel, Arabic numerals, subsidiary seconds.
Case: nickel, screw-down back, sprung hinged cover to the dial opened by a button to the band, wire lugs, stamped Brevet 71363.
Signed: unsigned.
Dimensions: diameter 34.5mm.
£100-£150