Rolex Datejust 31 mm

Rolex Datejust 31 mm, reference 278240-0011, has a 31 mm Oystersteel case with a domed bezel. The mint green dial sits under a scratch-resistant sapphire crystal with a Cyclops lens over the date. Luminous hands and indices keep the dial legible, and a central seconds hand joins the date display. Inside is the calibre 2236, a self-winding movement made by Rolex and certified as a chronometer, with a power reserve of approximately 55 hours. An Oyster bracelet in steel closes with a folding Oysterclasp fitted with the Easylink comfort extension link. The screw-down crown, part of the Twinlock system, holds the case to its 100 metre water resistance rating.