A modern icon of aviation heritage, the 46 mm polished stainless‑steel Navitimer B01 is defined by its signature circular slide‑rule bezel—perfect for in‑flight calculations. Its deep hunter‑green sunray dial is punctuated by contrasting silver chronograph subdials at 3, 6, and 9 o’clock, plus a discreet date window at 4:30. Bold luminescent hands and applied stick markers ensure crystal‑clear readability, whether you’re in the cockpit or on the ground. At its heart beats Breitling’s in‑house Calibre 01 self‑winding chronograph movement, COSC‑certified for chronometer accuracy and boasting a 70‑hour power reserve. Water‑resistant to 30 meters, it secures to the wrist on a matching stainless‑steel bracelet with folding clasp. Ships in the official Breitling presentation box with warranty card and full manufacturer collateral—ready for takeoff.