The Rolex Yacht-Master II is a high-performance regatta chronograph designed for competitive sailing, featuring a distinctive 44mm Oyster Perpetual case in 904L stainless steel with a bidirectional rotatable bezel marked with 10-minute graduations. The white dial showcases bold numerals, blue and red accents (including the iconic red countdown hand and triangular marker), and a central chronograph minute counter with a synchronized reset function—ensuring precise timing of race starts. Equipped with Calibre 4161, a self-winding mechanical movement with a 72-hour power reserve, it is officially certified as a Superlative Chronometer. The Oyster bracelet with Glidelock clasp offers secure, tool-free adjustment—even over a wetsuit. Water-resistant to 100 meters, this watch blends professional functionality with luxury aesthetics. Ideal for yachting enthusiasts and discerning collectors, it excels in maritime environments while remaining elegant for formal or smart-casual occasions. Its robust construction, legibility under sunlight, and patented Ring Command bezel system make it a standout in Rolex’s sports chronograph lineup.