Patek Philippe 2497

Patek Philippe. A very fine and rare 18K gold perpetual calendar wristwatch with sweep centre seconds and moon phase Signed Patek Philippe, Genève, ref. 2497, movement no. 888'023, case no. 674'382, manufactured in 1953 Cal. 27 SC Q nickel-finished lever movement stamped twice with the Geneva seal, 18 jewels, bimetallic compensation balance, micrometer regulator, silvered matte dial, applied gold Arabic and dot numerals, outer Arabic five minute divisions, sweep centre seconds, two apertures for day and month, subsidiary dial for date and moon phases, large circular case, snap on back, 18K gold Patek Philippe buckle, case, dial and movement signed 37 mm. diam.