Patek Philippe Ref 3565 1 18K Yellow Gold Calatrava in Mint condition with 18k yellow gold original Milanaise Band. Automatic caliber 27-460 M, stamped with the Seal of Geneva Quality Mark, rhodium-plated, 37 jewels, straight-line lever escapement, Glucydur Gyromax balance adjusted to heat, cold, isochronism and 5 positions, shock absorber, self-compensating blued steel Breguet balance spring, 18K yellow gold rotor. Champagne dial with black Roman numerals, date at 3:00. Diameter is 35 mm and thickness is 10 mm. Snap case back, acrylic crystal, signed crown, case, bracelet, and dial. Stock #PP11810.