As the precision timepieces rapidly evolved in the time of the World War I, his son, Gaston developed the first wrist watch chronograph and designed it for pilots who could wear the same. It was possible to make several calculations and in flight measurements which pilots had to perform during their flight in those times. Thus, the watch became more of an air piece instrument for pilots and Breitling gained a reputation in the market.

One of the most sought after breitling replica models is the Navitimer series. This watch became a big hit in the early fifties. The watch featured a calculator along with the chronograph and this enabled pilots to make all their necessary calculations. It thus became an on board instrument of great value and such a navigation computer on a wrist watch is valued even today in modern times. Not only are pilots big fans of the Navitimer series, but there are high values for which the vintage models of this series are sold in auctions every year. The Cosmonaute series accordingly have been designed for the astronauts and this series is distinguished by several features which make them great accessories for men in space. Thus, swiss replica watches are distinct and great to opt for as investments.