Using the same case as its B-1, a state-of-the-art electronic instrument launched last year, Breitling has developed a new model for pilots who love mechanical watches. The B-2’s exclusive chronometer-certified automatic movement is equipped with a “very short time” chronograph and an aviation slide rule whose figures are aligned very precisely thanks to an ingenious pinion mechanism. Activated by rotating the bezel, the slide rule also has a scale for converting minutes into hours.