18k yellow gold case with a 18k yellow gold rolex oyster bracelet. Fixed - 18k yellow gold (tachymeter engraved) bezel. Black mother of pearl dial with yellow gold-tone hands and Roman numeral hour markers. Minute markers around the outer rim. Dial Type: Analog. Luminescent hands. Chronograph - three sub-dials displaying: 12 hours, 30 minutes, and 60 seconds. Automatic movement. Scratch resistant sapphire crystal. Screw-down crown. Case diameter: 40 mm. Round case shape. Oysterclasp clasp. Water resistant at 100 meters / 330 feet. Functions: chronograph, hour, minute, second. Luxury watch style. Watch label: Swiss Made. Rolex Cosmograph Daytona Black Mother of Pearl Dial 18K Yellow Gold Rolex Oyster Automatic Men's Watch 116528BKMRO.