A gold open faced keyless lever pocket watch, Omega, circa 1920,

细节
A gold open faced keyless lever pocket watch, Omega, circa 1920,
14k, white enamel dial signed Omega, Arabic numerals, subsidiary seconds, outer red 24-hour numerals, moon hands, signed frosted gilt movement with bimetallic compensation balance, signed gilt metal cuvette, signed case with engine turned stripes, diameter 47mm.