The Breitling Chronospace is a professional instrument that values user-friendliness, readability, and ergonomics above all else. It boasts an impressive list of functions, including a 1/100th of a second chronograph, alarm, countdown, dual timezone with independent alarm, UTC, and perpetual calendar. The dial is large and features oversized hands, with a highly effective backlight for easy reading at night. This pilot's watch also has a rack-and-pinion mounted slide rule, which can be easily operated by rotating the star-shaped bezel. Its reference number is A7836534.F551.