316L Surgical-Quality Stainless Steel Case Jeweled Automatic Movement Jewel Bearings: 21 Jewels 42-Hour Power Reserve Beats per Hour (BPH): 21600/Hour Sapphire-Coated Mineral Crystal Observation Caseback to View Movement Genuine Leather Crocodile-Embossed Strap Logo-Engraved Stainless Steel Clasp Super LumiNova Hands Super LumiNova Markers Magnified Date Display 44mm Case Diameter 10 ATM Water Resistance