Patek Philippe Perpetual Calendar Chronograph 3970EP

A FINE AND RARE PLATINUM PERPETUAL CALENDAR CHRONOGRAPH WRISTWATCH WITH REGISTERS, MOON-PHASES, LEAP YEAR INDICATION AND DIAMOND-SET INDEXESREF 3970EP MVT 876639 CASE 2934754 CIRCA 1993 platinum and diamond-set diameter 36 mm , • cal. 27-70 movement stamped with the Geneva seal, 24 jewels • black dial, applied diamond-set indexes, 3 subsidiary dials for constant seconds combined with 24-hour indication, 30-minute register combined with leap year indication and date combined with moon-phases, apertures at 12 o'clock for day and month • platinum case, screw-down sapphire crystal display back • case, dial and movement signed