细节
Longines. A silver hinged single button aviation chronograph wristwatch
Signed Longines, circa 1935
With nickel finished lever movement, 17 jewels, bimetallic balance, stainless-steel cuvette, the silvered dial with Arabic numerals, two subsidiary dials indicating 30 minutes register and constant seconds, the large circular heavy case set on an angle with hinged back with engraved inscription, chronograph button in the crown, case, dial and movement signed
50 mm. diam.