316L Surgical-Quality Stainless Steel Case Japanese Miyota JS25 Quartz Movement Full-Function Chronograph Non-Glare Sapphire Crystal Logo-Engraved Stainless Steel Caseback Rotating Bezel with Aluminum Insert Screw Down Crown 316L Surgical-Quality Stainless Steel Bracelet Logo-Engraved Stainless Steel Clasp Helium Release Valve Swiss Super-LumiNova Hands Swiss Super-LumiNova Markers Date Display 24-Hour Sub-Dial 45mm Case Diameter 50 ATM Water Resistant (Professional Deep Diving Approved)