Rolex Oyster Perpetual 31 mm

The Rolex Oyster Perpetual 31 mm, reference 277200-0017, is built in Oystersteel with a 31 mm case and a domed bezel. The Med blue dial is paired with an Oyster bracelet and a sapphire crystal, and water resistance is rated to 100 meters. Inside is the self-winding caliber 2232, a chronometer movement with a power reserve of approximately 55 hours.