Breitling Chronomat GMT Dirty Dozen For the first few production

For the first few production years of the 1680

With a sleek aerodynamic design dominated by a tail fin

the Sporto came with inner acrylic case back

this piece offers a bit of extra flair with its factory diamond-set bezel

The 24 hour bezel was revolutionary when it was introduced because it allowed pilots to know the correct time at all times

Breitling Chronomat GMT Dirty Dozen For the first few productionMost vintage collectors would agree that when they hear the name 'Breitling', the model that springs to mind is the Navitimer, arguably the quintessential pilots chronograph and navigational tool. But the Navitimer owes its success to the inroads made by its predecessor, the Chronomat. Where the later Navitimers were produced in 42mm, the original Chronomat was built around a sleek 37mm steel case, making it infinitely more comfortable and discreet on