Movement: Automatic caliber ETA 2836-2 COSC Certified, Cold Temperature endurance to -40degrees Function: 3 Hands and day/date 80 micro gas tubes shock-resistance to 7,500 Gs Anti-magnetic to 12,000A/m water-resistance to 300m Case: 41.5 mm stainless steel Height 16.1mm Unidirectional rotating Bezel 4mm Anti-reflective convex sapphire crystal Patented crown protection system Band: Stainless steel tapered bracelet, dive extension