Stainless steel case with a stainless steel oyster bracelet. Unidirectional rotating bezel. Black dial with luminous hands and luminous dots hour markers. Minute markers around the outer rim. Luminescent hands and dial markers. Date displays at the 3 o'clock position. 31 jewels automatic movement. Scratch resistant sapphire crystal. Case diameter: 40 mm. Double locking deployment clasp. Water resistant at 300 meters / 1000 feet. Functions: hours, minutes, seconds, calendar. Rolex Submariner Black Index Dial Oyster Bracelet Stainless Steel Mens Watch 16610BKSO.