Watch Ultra-thin self-winding mechanical movement. Caliber 240. Dial : Handengraved, black enamel. 18K gold dial plate. Case : Platinum. Calatrava wristwatch with hand-engraved and enameled dial. Diameter: 38 mm. Height: 8.3 mm. Water resistant : 30 m. Sapphire crystal case back. Strap : Shiny black alligator. Hand-engraved prong buckle. Diameter: 27.5 mm. Thickness: 2.53 mm. Number of parts: 161. Bridges: 6. Jewels: 27. Power reserve: Min. 48 hours. Winding rotor: off-center 22K gold minirotor. Balance: Gyromax®. Frequency: 21,600 semi-oscillations/hour (3 Hz). Balance spring: Spiromax®. Hallmark: Patek Philippe Seal.