Rolex Datejust 31 mm

Rolex Datejust 31, reference 278241-0017, measures 31 mm in steel and gold. The domed bezel tops a case with a sapphire crystal set with a Cyclops lens over the date. Inside is the calibre 2236, a self-winding movement with a 55-hour power reserve, and the watch carries chronometer certification. A screw-down crown protects the case, and the slate dial shows a central seconds display alongside the date. The steel and gold bracelet closes with a folding Oysterclasp fitted with an Easylink comfort extension link. This Datejust is a chronometer with a movement certified to keep time within 2 seconds a day. The case is waterproof to 100 metres.