Patek Philippe Perpetual Calendar 2438/1

Patek Philippe. A Fine And Very Rare 18k Gold Perpetual Calendar Wristwatch With Center Seconds And Moon Phases Signed Patek Philippe, Geneve, Ref. 2438/1, Movement No. 888'102, Case No. 687'967, Manufactured in 1954 Cal. 27 SC Q nickel-finished lever movement stamped with the Geneva seal, 18 jewels, bi-metallic compensation balance, micrometer regulator, silvered matte dial, two apertures for day and month, subsidiary seconds combined with phases of the moon, center seconds, circular case water-resistant-type case, screw back, 18k gold Patek Philippe buckle, case, dial and movement signed 37mm diam.