Built for precision and performance, the 44 mm Chronomat B01 features a robust polished stainless‑steel case with signature rider‑tab bezel. Its deep black dial is punctuated by applied Roman numeral hour markers, broad Super‑LumiNova®‑filled sword hands, and three contrasting chronograph sub‑dials at 3, 6, and 9 o’clock—plus a discreet date window between 4 and 5. At its heart beats Breitling’s in‑house Calibre 01 self‑winding chronograph movement, COSC‑certified for ±4 sec/day accuracy and offering a 70‑hour power reserve. Rated to 200 meters of water resistance, it rides on a matching stainless‑steel Pilot bracelet with secure folding clasp. Ships complete with the official Breitling presentation box, warranty card, and full manufacturer collateral—ready for every challenge.