Breitling Navitimer B12 Chronograph 41 Cosmonaut RB12302A1L1P1 Automatic Men's WatchProduct Overview The iconic Breitling pilot's chronograph perfect for space travel. In the early 1960s, the Navitimer, equipped with a rotating slide rule for in flight calculations, became a universally recognized pilot watch. However, during the era of the space race, another competition was quietly unfolding among watch manufacturers to develop the world's first astronaut watch. On May 24, 1962, when Scott Carpenter wore the Navitimer Cosmonaute