Yellow gold-tone 18kt yellow gold case with a yellow gold-tone 18kt yellow gold oyster bracelet. Bi-directional rotating blue 18kt yellow gold bezel. White dial with yellow gold-tone hands and index hour markers. Minute markers around the outer rim. Dial Type: Analog. Luminescent hands and markers. One subdial displaying: small second. Rolex Calibre 4161 Automatic movement, based upon Rolex 4160, containing 48 Jewels, composed of 360 parts, 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: 44 mm. Fold over clasp with a safety release. Water resistant at 100 meters / 330 feet. Functions: chronograph, hour, minute, small second, chronometer. Yacht-master II Series. Luxury watch style. Watch label: Swiss Made. Item Variations: M116688-0002. Pre-owned Rolex Yacht-Master II Chronograph Automatic Chronometer White Dial Mens Watch 116688 WSO.