Patek Philippe Grand Complications 5496P-001 Perpetual Calendar Men's Watch. 40mm Platinum case. Platinum smooth bezel. Perpetual calendar and moon phase indicator. Black Alligator Strap with platinum deployant buckle. Will fit up to an 8-inch wrist. Sapphire crystal, clear case back. Calibre 324 S QR Automatic self-winding movement with a 45-hour power reserve. Original Patek Box , Archives, and Booklets included. This watch is backed by our two year warranty.