Breitling accomplished its design and tryout of rotary-and-slip dial, and earned the Swiss NO.217012 patent on September 30 1979. This invention has brought with a revolutionary breakthrough to the function of watches, because it makes numerical operation and mile transfer simple and it also makes it possible to figure out the speed ant time of aero planes’ taking off and landing. It has been almost a century since Breitling supported aviation and devoted its effort to educating aviation talents. They spare no effort in advancing aero career. Every year, Breitling Academy brings new blood to aero circle, and this primitive program is continuously applied all over the world. Besides, they also sponsor every year's aviation programs and contests. Breitling also declares that its watches are all presented the Chronometer Certificate from Swiss Official Sophisticated Chronometer Test Center, and become the only brand in the world that is up to Chronometer Standard.