Patek Philippe 2497

Patek Philippe. A very fine and rare 18K gold perpetual calendar wristwatch with sweep centre seconds, moon phases, champagne dial, magnified day and date and box Signed Patek Philippe, Genève, ref. 2497, movement no. 888'068, case no. 683'307, manufactured in 1954 Cal. 27 SC Q nickel-finished lever movement stamped twice with the Geneva seal, 18 jewels, bimetallic balance, micrometer regulator, champagne dial, applied dot and Arabic numerals, sweep centre seconds, two magnified apertures for day and month, subsidiary dial for date and moon phases, large circular case, downturned fluted lugs, snap on back, 18K gold Patek Philippe buckle, case, dial and movement signed 37 mm. diam. , The present watch is prominently described and illustrated in Patek Philippe Complicated Wrist Watches by Paolo de Vecchi & Giorgio Gregato, pp. 138 & 139.