Omega. A WWI nickel military issue open-faced keyless Aviator’s watch, 30-hour Non Luminous Mark V, B.B. 7066, circa 1915.
Movement: lever escapement, no. 5237492.
Dial: black, Arabic numerals, subsidiary seconds.
Case: nickel, hinged cuvette, snap-on back bearing Aviation issue mark for Royal flying corps, no. 6075864.
Signed: movement and cuvette.
Dimensions: diameter 51.5mm.
£80-£100