The Rolex Yacht-Master II ref. 116681 is a bold 44mm regatta chronograph designed for professional sailing and luxury sport use. Crafted from Oystersteel and 18k Everose gold, it features a striking blue Cerachrom Ring Command bezel that mechanically interacts with the in-house Calibre 4161 movement. This COSC-certified automatic movement includes a programmable 10-minute countdown timer with mechanical memory, making it unique among Rolex models. The crisp white dial with Chromalight luminous markers ensures excellent legibility, while the two-tone Oyster bracelet with Oysterlock clasp provides comfort, durability, and unmistakable presence both on and off the water.