Patek Philippe Golden Ellipse Rare Handcrafts 34.5 x 39.5mm 18K White Gold Hand Engraved Black Enamel Dial (Ref# 5738/51G-001)

34.5 x 39.5mm white gold case with a thickness of 6.58mm and proportions inspired by the golden section, solid case back, crown set with a black onyx cabochon, black Grand Feu champlevé enamel dial on an 18K gold dial plate hand-engraved with a white gold arabesques and volutes decor and white gold cheveu-style hands, ultra-thin self-winding Caliber 240 measuring 27.5mm in diameter and 2.53mm thick with 152 parts and 27 jewels, 22K gold off-center minirotor, Gyromax® balance and Spiromax® balance spring, operating at 21,600 semi-oscillations per hour (3 Hz), power reserve of min. 48 hours, hand-stitched shiny black alligator leather strap with square scales, white gold prong buckle. Not waterproof, humidity- and dust-protected only. Patek Philippe Seal certified.