Silver-tone stainless steel case with a two-tone (silver-tone and gold-tone) stainless steel oyster bracelet. Uni-directional rotating 18kt yellow gold bezel. Blue dial with gold-tone hands and index hour markers. Minute markers around the outer rim. Dial Type: Analog. Luminescent hands and markers. Date display at the 3 o'clock position. Rolex Calibre 3135 automatic movement with a 48-hour power reserve. Scratch resistant sapphire crystal. Screw down crown. Solid case back. Round case shape. Case size: 40 mm. Band length: 7.5 inches. Oysterlock clasp. Water resistant at 100 meters / 330 feet. Functions: date, hour, minute, second, chronometer. Luxury watch style. Watch label: Swiss Made. Pre-owned Rolex Yacht-Master Automatic Chronometer Blue Dial Mens Watch 16623 BLSO.