Pre-owned Breitling Navitimer B01 Chronograph 46 ref AB0127211C1A1 (2018) is one of those watches that hasn’t really changed much because it hasn’t needed to. The Navitimer dates back to the 1950s and was designed for pilots, with its defining feature being the circular slide rule bezel. It’s essentially a built-in analog computer, allowing for calculations like fuel consumption, airspeed, and distance. Practical tools back when cockpit instruments weren’t as advanced. This 46mm version embraces that legacy with a larger case that makes the dial easier to read and gives the watch a strong presence on the wrist. The layout is classic Navitimer, with a busy but purposeful chronograph display and that signature slide rule running along the outer edge. Inside is the in-house Breitling caliber 01, a COSC-certified chronograph movement. The exhibition caseback lets you see it in action, which adds a nice touch to the overall wrist-wearing experience. Shop Breitling Navitimer Collection