The Rolex Oyster Perpetual Cosmograph Daytona in yellow gold with a grey dial is a 40 mm automatic chronograph. This Daytona model is suited for daily wear or special engagements. Its construction provides durability for varied activities. The timepiece secures with a yellow gold Oyster bracelet, designed for comfort and security on the wrist. Key details Brand: Rolex Type: Automatic watch Calibre: 4130 Material: Yellow gold Dial: Grey Diameter: 40 mm Water resistance: 10 ATM