Patek Philippe Calatrava 1509

AN 18CT GOLD 'CALATRAVA' WRISTWATCH, BY PATEK PHILIPPE, REF. 1509 The circular silvered dial with applied 'Breguet' numerals, straight hands and subsidiary dial for constant seconds, nickel-finished 18 jewelled lever movement, adjusted 5 positions to heat and cold, isochronism, the case with snap on back and tear-drop lugs, circa 1950, case 32mm, Patek Philippe buckle, suede pouch and service label Dial and movement signed Patek Philippe, movement no. 969683, case no. 660795 , Please note that as the straps for this wristwatch may be of endangered or protected animal materials, such as crocodile, they are not sold with the watch but are for display purposes only. Christie's will need to remove and retain the straps before collection by the purchaser. , Please note that the case is approximately 35mm wide and not as incorrectly stated in the catalogue