Rolex Datejust 31 mm

The Rolex Datejust 31 mm, reference 278240-0015, is a women's model with a 31 mm Oystersteel case and a domed bezel. The dark grey dial is paired with an Oyster bracelet and protected by a sapphire crystal. It is powered by the self-winding caliber 2236, a chronometer-certified movement with a 55-hour power reserve, and the case is water resistant to 100 meters.