316L Surgical-Quality Stainless Steel Case Swiss Quartz Automatic Movement Sapphire-Coated Mineral Crystal Logo-Engraved Stainless Steel Caseback Uni-Directional Bezel Screw-Down Crown 316L Surgical-Quality Stainless Steel Bracelet Logo-Engraved Fold-Over Push-Button Deployment Clasp Luminous Hands Luminous Markers Magnified Date Indicator 46mm Diameter 20ATM Water Resistance (Professional Deep Diving Approved)