Patek Philippe Nautilus Watch Style No: 5711/1A-010 is a 43mm x 38mm in a beautiful stainless steel case, sapphire crystal back, screw-down crown, black-blue dial with gold applied hour markers with luminescent coating, self-winding caliber 324 S C movement with date and sweep second hand, approximately 45 hour of power reserve, stainless steel bracelet. Water resistant to 120 meters.