Watches Details: Stainless Steel Case. Stainless Steel Strap. Black Dial. Stainless Steel Bezel. Scratch Resistant Sapphire Crystal. Buckle Clasp. 51 mm Case Diameter. Automatic Movement. Water Resistant At 50 Meters (165 Feet). Zenith Port Royal Stainless Steel Mens Watch 03.0550.400/22.M550