Breitling AB0139631C1P1 Chronograph Automatic Swiss Watch Stainless Steel 43mm Water Resistant Luxury DesignProduct Description The iconic Breitling pilot's chronograph its journey. In 1952, Willy Breitling developed a wrist worn chronograph with a rotating slide rule that allowed pilots to perform all necessary calculations for flight. Two years later, this design was announced as the official timepiece of the Aircraft Owners and Pilots Association (AOPA). Thus, the "Navitimer" was born. AOPA is (still) the world's largest pilot club, with nearly every