316L Surgical-Quality Stainless Steel Case, Accurate Japanese Automatic Movement Caliber 8215, Scratch Resistant Mineral Crystal. Logo Engraved Stainless Steel Caseback and Screw Down Crown, Unidirectional Rotatable Bezel. Luminous Hands and Markers for low-light visibility. Black Dial Face with Mens Style Design. Includes Deployment Clasp Fold Over Bracelet also made from 316L Stainless Steel. Professional Deep Diving Watch Approved with 20 ATM Water Resistance (Equivalent to 660 feet or approximately 200 meters).