The Breitling Premier B21 Chronograph Tourbillon 42 Limited Edition (Ref. RB21204A1C1P1) was introduced in 2025 as a North America-exclusive edition limited to just 75 pieces. Combining luxurious materials with exceptional technical complexity, the watch pairs an 18K red gold case with a blue gradient dial, showcasing a striking balance between elegance and performance. Measuring 42 mm in diameter and 15.25 mm thick, the case features rectangular chronograph pushers, a domed sapphire crystal, and a sapphire caseback offering a clear view of the movement. Water resistance is rated at 100 meters, ensuring durability without compromising refinement. The blue gradient dial presents applied Arabic numerals, gold hands, and a 60-minute chronograph counter at 6 o’clock. At 12 o’clock, a one-minute flying tourbillon takes center stage beneath a curved bridge - the aesthetic and mechanical focal point of the design. Powering this timepiece is the Breitling Calibre B21, a self-winding column-wheel chronograph tourbillon developed in collaboration with La Joux-Perret. Operating at 28,800 vibrations per hour, it provides a 55-hour power reserve and features a gold rotor visible through the exhibition caseback. The Premier B21 Chronograph Tourbillon 42 RB21204A1C1P1 is completed with a brown alligator leather strap and an 18K red gold folding clasp - a refined embodiment of Breitling’s heritage, precision, and craftsmanship.