316L Surgical-Quality Stainless Steel Case Jeweled Automatic Movement Jewel Bearings: 20 Jewels 36-Hour Power Reserve Beats per Hour (BPH): 21600/Hour Sapphire-Coated Mineral Crystal Engraved Sunray Dial Semi-Skeleton Dial Observation Caseback to view Movement Genuine Leather Crocodile-Embossed Strap Logo-Engraved Stainless Steel Clasp Day Sub-Dial Date Sub-Dial Moon Phase 24-Hour Sub-Dial 44mm Diameter 5 ATM Water Resistance