The Rolex Deepsea ref. 136668LB is a groundbreaking addition to the brand’s lineup, introducing the first 44 mm professional dive watch in 18K yellow gold. This luxurious timepiece features a stunning glossy royal blue dial and a blue Cerachrom bezel. The robust case measures 44 mm in diameter, 17.7 mm in thickness, and boasts water resistance up to an astounding 3,990 meters (12,800 feet). Powered by the Rolex Calibre 3235 movement, it delivers a 70-hour power reserve and is chronometer-certified for exceptional precision. Key functions include hours, minutes, seconds, a quick-set date, and a unidirectional 60-minute bezel.