Stainless steel case with a oyster bracelet. Domed bezel. Black dial with luminous hands and stick hour markers. Minute markers around the outer rim. Self winding movement. Scratch resistant sapphire crystal. Case diameter: 39 mm. Deployment clasp. Water resistant at 100 meters/ 330 feeet. Functions: hours, minutes, seconds. Rolex Explorer Black Dial Domed Bezel Oyster Bracelet Mens Watch 214270BKASO.