细节
Patek Philippe. A unique and important stainless steel and gilt copper openface perpetual calendar keyless lever watch with phases of the moon and black dial
Signed Patek Philippe & Co., Genève, movement no. 80'527, case no. 611'363, movement manufactured in 1891, finished to the present specifications in 1934 and sold on 15 September 1936
Cal. 18''', with nickel-finished fully jewelled lever movement, bimetallic compensation balance with gold screws, swan neck regulator, wolf's tooth winding, the black dial with applied gold Arabic numerals, gold feuille hands, three subsidiary dials indicating month, date combined with constant seconds and day, aperture for phases of the moon combined with lunar calendar, the circular stainless steel case with gilt copper band, crown, pendant and bow, stainless steel snap on back, case, dial and movement signed
50 mm. diam.