Brand Rolex Model Submariner Reference 126610LN Gender Men’s watch Movement Kinetic (Automatic) Case Diameter 41 mm Case Material 904 Grade Stainless Steel Band Material 316 Grade Stainless Steel Dial Color Black Quality Swiss (ETA) Glass Sapphire crystal Water Resistance Watches are water resistant but not waterproof, we do not recommend swimming with them or taking showers with them.