Brand Rolex Model Day-Date II Reference 218239 Gender Men’s watch Movement Kinetic (Automatic) Case Diameter 41 mm Case Material 316 Grade Stainless Steel Band Material 316 Grade Stainless Steel (President) Dial Color Silver Quality Japanese (Miyota) Glass Sapphire crystal Water Resistance Watches are water resistant but not waterproof, we do not recommend swimming with them or taking showers with them.