316L Surgical-Quality Stainless Steel Case Japanese NH35 Automatic Movement Sapphire-Coated Mineral Crystal Logo-Engraved Stainless Steel Caseback Swiss Super-LumiNova Bezel Screw-Down Crown 316L Surgical-Quality Stainless Steel Bracelet Logo-Engraved Stainless Steel Clasp Swiss Super-LumiNova Hands Swiss Super-LumiNova Markers Date Indicator 42mm Case Diameter 20ATM Water Resistance (Professional Deep Diving Approved)