18kt yellow gold case with a 18kt yellow gold oyster bracelet. Unidirectional rotating bezel. Blue dial with luminous hands and luminous hands hour markers. Minute markers around the outer rim. Luminiscent hands and dial markers. Date display at the 3 o'clock position. Automatic movement. Scratch resistant sapphire crystal. Case diameter: 40 mm. Double locking deployment clasp. Water resistant at 300 meters/ 1000 feet. Additional Info: date displays at 3 o'clock position. Rolex Submariner Blue Index Dial Oyster Bracelet 18k Yellow Gold Mens Watch 16618BLSO.