Patek Philippe Nautilus Annual Calendar Moon Phases – 40.5 mm – Steel – Blue Dial – 5726/1A-014

40.5 mm steel case, 11.3 mm thick, sapphire-crystal back, blue dial with black gradated, gold applied hour markers with luminescent coating, caliber 324 S QA LU 24H self-winding movement, approximately 35-45 hours of power reserve, steel bracelet, nautilus fold-over buckle. Water resistant to 120 m.