316L Surgical-Quality Stainless Steel Case Jeweled Automatic Movement Jewel Bearings: 22 Jewels 42-Hour Power Reserve Beats per Hour (BPH): 21600/Hour Sapphire-Coated Mineral Crystal Semi-Skeleton Dial Observation Caseback to view Movement Logo-Engraved Crown Genuine Leather Strap Logo-Engraved Stainless Steel Clasp Luminous Hands 43mm Case Width 10 ATM Water Resistance