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Soon after its launch in 1952, citizen the NAVITIMER chronograph became a favorite with pilots. In addition to its ability to measure short times, this wrist instrument is equipped watch with a "navigation computer", a circular slide rule able to handle all airborne navigation calculations, such as climbing times company or fuel consumption rate, and even to convert miles into nautical miles or kilometers. citizen This first NAVITIMER was officially watch chosen by the AOPA (Aircraft Owners and Pilots Association), encompassing pilots from around the world. Today, this model has lent its name to a line of original mechanical chronographs, company featuring a wealth of exclusive technical features and naturally all fitted with the famous slide rule. The PROFESSIONAL line encompasses the citizen BREITLING chronographs most specifically tailored to the world of aviation. From the EMERGENCY built-in microtransmitter to the electronic sophistication of the B-1, along with the watch and company ease of handling typical of AEROSPACE models, BREITLING places its finest technology in the service of pilots. There citizen are also chronographs with a center seconds hand which watch can be started, stopped and brought back to zero using one or two push-button on the side of the watch. Other additional company functions include second time zone, alarm, moonphase, repeater, perpetual calendar, etc. Generally speaking, on may say that a simple mechanical watch (hours, minutes and seconds hands) should citizen include at least fifteen jewels located in the places most subject watch to company wear due to friction. It should be fitted with a shock-absorbing system on the balance, a good quality balance-spring and an citizen unbreakable spring. watch In 1908, Rolex was founded by Mr. Hans Wilsdorf, a German National company Citizen. Initially the company was named Wilsdorf & Davis as Wilsdorf founded company together with his brother in law.
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