Patek Philippe Perpetual Calendar Grand Complications Mens 18K Yellow Gold Watch. Model 3940. Automatic movement. Rhodium plated, fausses cotes decoration, straight-line lever escapement, Gyromax balance adjusted to heat, cold, isochronism and 5 positions, shock absorber, free-sprung self-compensating flat balance spring, 22K gold micro-rotor. Caliber 240 Q. 27 Jewels. 18k yellow gold case 36.0 mm in diameter. Concave lugs, snap-on case back. Sapphire crystal. Matte silver with applied yellow gold faceted baton indexes, outer engraved minute divisions, subsidiary dials for the days of the month, of the week, the months, the 24 hours and leap year, aperture for the moon phases. Yellow gold dauphine hands. 18k yellow gold concave bezel. Black leather strap with 18K yellow gold deployant buckle.

Ref Variations: 3940, 3940P, 3940J, 3940P-011, 3940R, 3940-1,