Rolex Datejust 31 mm

The Rolex Datejust 31 mm, reference 278240-0010, is a women's model with a 31 mm Oystersteel case and a Domed bezel. It is fitted with a Dark grey dial and an Oystersteel Jubilee bracelet, and the sapphire crystal covers a Date display. Inside is the self-winding caliber 2236, a chronometer movement offering 55 hours of power reserve, and the case is water resistant to 100 metres.