Brand Rolex Model Oyster Perpetual Lady Reference 177234 Gender Women’s watch Movement Kinetic (Automatic) Case Diameter 31 mm Case Material Stainless Steel & White Gold Plated Band Material 316 Grade Stainless Steel (Oyster) Dial Color Black 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.