The TUDOR Black Bay Chrono "Carbon 26" M79377KN-0003 was introduced in 2025 as a limited edition linked to the 2026 Formula 1 season. It enhances the previous "Carbon 25" model with a new color palette inspired by motorsport and a significantly lighter full-carbon design. Limited to just 2,026 models, this timepiece marries the classic Black Bay Chrono aesthetics with specialized materials suited for racing applications.

With a case diameter of 42mm crafted from carbon fiber, it features a fixed tachymeter bezel also made of carbon fiber. The pushers are constructed from PVD-treated titanium, and the titanium case back, which carries unique numbering, is likewise finished in PVD. Boasting a water resistance of up to 200 meters, the dial presents a domed “racing white” surface that includes black chronograph counters made from layered carbon fiber. Yellow highlights reflect the livery of the 2026 Visa Cash App Racing Bulls, while the date display sits at the 6 o'clock position. True to the Black Bay heritage, TUDOR's Snowflake hands are outlined in black, filled with Grade A Swiss Super-LumiNova, and adapted to the sporty design.

At the heart of the watch is the Manufacture Chronograph Caliber MT5813, a self-winding chronograph employing column wheel and vertical clutch mechanisms, operating at a frequency of 28,800 vibrations per hour. It features a silicon balance spring and boasts a power reserve of around 70 hours, complete with COSC certification. The movement is viewable through the transparent case back and is complemented by a hybrid leather-rubber strap adorned with a tire tread pattern and carbon fiber end-links.