Patek Philippe. Montre bracelet en or jaune 18K (750) mouvement mécanique Patek Philippe. An 18K gold manual wind wristwatch Calatrava, Ref 1578J, Circa 1950Patek Philippe. Montre bracelet en or jaune 18K (750) mouvement mécaniquePatek Philippe. An 18K gold manual wind wristwatch Model: CalatravaReference: 1578JDate: Circa 1950Movement: 18-jewel Cal.27SC manual wind, adjusted to heat, cold, isochronism and 5 positions, Geneva stamp, No.707724Dial: Champagne, applied gilt pointed baton hour markers, outer dot minute divisions, gilt faceted lance hands, centre secondsCase: Brushed and polished round, snap on back, faceted down turned lugs, No.2600987Strap/Bracelet: Black alligator leatherBuckle/Clasp: Gold plated buckleSigned: Case, dial & movementSize: 35mm Weight: 48,34grNone