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 Custom Vitreous Enamel Dial Cloisonné is an ancient technique for decorating metalwork objects in recent centuries using vitreous enamel Observation Caseback to view Movement Hinged Caseback Cover of Vitreous Enamel Genuine Leather Crocodile-Embossed Strap Logo-Engraved Stainless Steel Clasp Luminous Hands Day Sub-Dial Date Sub-Dial 44mm Diameter 5 ATM Water Resistance