316L Surgical-Quality Stainless Steel Case Jeweled Chinese Automatic Movement Jewel Bearings: 22 Jewels 36-Hour Power Reserve Beats per Hour (BPH): 21600/Hour Sapphire-Coated Mineral Crystal Observation Caseback to view Movement Uni-Directional Bezel Skeletonized Dial Genuine Leather Strap Logo-Engraved Stainless Steel Clasp Luminous Hands 24-Hour Sub-Dial 43mm Case Diameter 5 ATM Water Resistance