Patek Philippe Perpetual Calendar Chronograph 3970

A FINE AND RARE 18K PINK GOLD PERPETUAL CALENDAR CHRONOGRAPH WRISTWATCH WITH REGISTERS AND MOON-PHASES 1997 REF 3970ER MVT 3045596 Pink gold, alligator diameter 36 mm , • cal 27-70Q manual winding movement stamped with the seal of Geneva, 24 jewels • silvered dial, apertures for day and month, three subsidiary dials indicating constant seconds combined with 24-hour indication, 30-minute register combined with leap year indicator and date combined with fan-form aperture for moon-phases • concave bezel, screw-down case back • case, dial and movement signed • 18k pink gold Patek Philippe folding buckle