Engraved 316L Surgical-Quality Stainless Steel Case Miyota 8215 Automatic Movement Jewel Bearings: 21 Jewels 42-Hour Power Reserve Beats per Hour (BPH): 21600/Hour Sapphire-Coated Mineral Crystal Engraved Pattern Dial Observation Caseback to view Movement Logo-Engraved Crown Genuine Leather Strap Logo-Engraved Stainless Steel Clasp Luminous Hands Magnified Date Display 45mm Case Diameter 5 ATM Water Resistance