Rolex Oyster Perpetual 31 mm

The Rolex Oyster Perpetual 31 mm, reference 277200-0012, comes in a steel case with a domed bezel. The case measures 31 mm across and pairs with a pistachio dial, luminous hands and indices marking the hours. A scratch-resistant sapphire crystal covers the dial. Inside is the self-winding calibre 2232, a Rolex manufacture movement with a power reserve of approximately 55 hours, and the watch carries Rolex chronometer certification. The screw-down crown adds to the watch's protection against dust and moisture. It fits on a steel Oyster bracelet with a folding Oysterclasp and Easylink comfort extension link. Rolex rates the case to 100 metres of water resistance.