Patek Philippe. A very fine and rare 18K gold perpetual calendar wristwatch with sweep centre seconds and moon phases Signed Patek Philippe, Genève, Ref. 2497, movement no. 888’070, case no. 883’309, manufactured in 1954 Movement: cal. 27SCQ stamped twice with the Geneva seal, 18 jewels, signed Dial: signed Case: snap on back, 37 mm. diam., signed With: 18K gold Patek Philippe buckle, Extract from the Archives confirming manufacture of the present watch in 1953 and its subsequent sale on 29 March 1956