A FINE AND RARE PLATINUM AUTOMATIC CENTER SECONDS PERPETUAL CALENDAR WRISTWATCH WITH RETROGRADE DATE AND MOON PHASES, Patek Philippe & Co., Genève, NO. 1957563, REF. 5050, CIRCA 1996

rhodium plated lever movement (Calibre 315S QR) stamped with the seal of Geneva, 31 jewels, free-sprung gyromax balance, adjusted to heat, cold, isochronism and 5 positions, silvered matte dial with applied Roman numerals, apertures for day, month and leap year indicator, retrograde date, sector with moon phases, white gold leaf hands, water-resistant type circular case with screw-down back, sapphire crystal display back, case, dial and movement signed, with a platinum Patek Philippe buckle.