Breitling's Professional line is a true display of their expertise in both electronic and mechanical watchmaking. The Skyracer, a self-winding chronograph, is a prime example of this excellence. It features the new Caliber 27, a unique mechanism that allows for dual time readings. The 60-minute totalizer with a center pointer ensures easy readability for shorter measurements, while a two-hand counter displays hours and minutes for longer durations. This efficient timekeeping is further enhanced by a slide-rule, which can be easily controlled with precise accuracy. The Skyracer's aviation-inspired design is also seen on its caseback, with symbols from the Ground Air Visual Signal Code.