PATEK PHILIPPE REF 5970J CHRONOGRAPH PERPETUAL CALENDAR SEALED YELLOW GOLD Patek Philippe, GenËve, No. 3049296, case No. 4453779, Ref. 5970J-001. Sold June 23rd, 2008. Very fine, water-resistant, 18K yellow gold wristwatch with square button chronograph, register, perpetual calendar, moon phases, tachometer and 18K yellow gold Patek Philippe deployant clasp. Accompanied by the original fitted wooden box, Certificate of Origin, solid 18K yellow gold case back, setting pin and booklets. Three-body, solid, polished, concave bezel, curved and fluted lugs, transparent screwed-down case back, sapphire crystals. Matte silver with applied yellow gold faceted baton indexes, subsidiary dials for the seconds, 24 hours, 30-minute register and leap year, graduation for the days of the month, minute/ seconds track and tachometer scale, outer 1/5th seconds track, apertures for days of the week, months and moon phases. Yellow gold feuille hands. Cal. 27-70/155, stamped with the Seal of Geneva quality mark, rhodium- plated, fausses cotes decoration, 24 jewels, straight-line lever escapement, Gyromax balance adjusted to heat, cold, shock absorber, self-compensating free-sprung Breguet balance spring.