18kt yellow gold case with a 18kt yellow gold oyster bracelet. Engraved 18kt yellow gold bezel. Black dial with luminous hands and index hour markers. Minute markers around the outer rim. Dial Type: Analog. Luminescent hands and dial markers. Chronograph – three sub-dials displaying: 60 second, 30 minute and 24 hour. Automatic movement. Scratch resistant sapphire crystal. Solid case back. Case diameter: 40 mm. Round case shape. Oyster clasp. Water resistant at 100 meters/ 330 feet. Functions: hours/ minutes/ seconds/ chronograph. Luxury watch style. Watch label: Swiss Made. Rolex Cosmograph Daytona Black Dial 18t Yellow Gold Oyster Bracelet Mens Watch 116528BKSO.