Yellow gold-tone 18kt yellow gold case with a yellow gold-tone 18kt yellow gold oyster bracelet. Fixed tachymeter scale yellow gold-tone 18kt yellow gold bezel. Black dial with yellow gold-tone hands and index hour markers. Minute markers around the outer rim. Dial Type: Analog. Luminescent hands and markers. Chronograph - three sub-dials displaying: 60 second, 30 minute and 12 hour. Rolex Calibre 4130 Automatic movement, based upon Rolex 4030, containing 44 Jewels, bitting at 28800 vph, and has a power reserve of approximately 72 hours. Scratch resistant sapphire crystal. Screw down crown. Solid case back. Round case shape, case size: 40 mm. Fold over clasp with a safety release. Water resistant at 100 meters / 330 feet. Functions: chronograph, hour, minute, small second, chronometer. Daytona Series. Dress watch style. Watch label: Swiss Made. Pre-owned Rolex Daytona Chronograph Automatic Chronometer Black Dial Mens Watch 116528 BKSO.