Patek Philippe 2497

Patek Philippe. An very fine and rare 18K gold perpetual calendar wristwatch with sweep centre seconds and phases of the moon Signed Patek Philippe, Geneve, ref. 2497, movement no. 888'021, case no. 674'380, manufactured in 1953 Cal. 27 SC Q nickel-finished lever movement stamped twice with the Geneva seal, 18 jewels, bimetallic compensation balance, micrometer regulator, the silvered matte dial with applied gold Arabic and dot numerals, gold feuille hands, outer Arabic five minute divisions, sweep centre seconds, two apertures for day and month, subsidiary dial indicating phases of the moon combined with date, the large circular case with downturned fluted lugs, snap on back, 18K gold Patek Philippe buckle, case, dial and movement signed 37 mm. diam.