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Soon after its launch in 1952, the NAVITIMER chronograph became a favorite with pilots. In addition to its ability to measure short times, this wrist instrument concord is equipped with a "navigation computer", a circular slide rule able to handle all airborne navigation calculations, such as climbing times or fuel consumption rate, and even to convert miles into nautical miles or kilometers. This first NAVITIMER was officially 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, featuring a wealth of exclusive technical features and naturally all fitted with the concord famous slide rule. The PROFESSIONAL line encompasses the BREITLING chronographs most specifically tailored to the world of aviation. From the EMERGENCY built-in microtransmitter to the electronic sophistication of concord the B-1, along with the ease of handling typical of AEROSPACE models, BREITLING places its finest technology in the service of pilots. There concord are also chronographs with a center seconds hand which can be started, concord stopped and brought back to zero using one or two push-button on the side of the watch. Other additional 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 include at least fifteen jewels located in the concord places most subject to wear due to concord friction. It should be fitted with a shock-absorbing system on the balance, a good quality balance-spring and an unbreakable spring. In 1908, Rolex was founded by Mr. Hans Wilsdorf, a German National Citizen. Initially the company was named Wilsdorf & Davis as Wilsdorf founded company together with his brother in law. welcome to the internets hottest site for the highest quality preowned jewelry and watches. A Receipt of Authenticity and Valuation accompanies each fine timepiece or article of jewelry purchased here. Each Rolex watch is unconditionally guaranteed against defects in materials or workmanship in the mechanism for concord two full years after the date of purchase. This is double the manufacturer''s warranty on a new watch. All other mechanisms are unconditionally guaranteed against defects in materials or workmanship for one full year after the date of purchase, unless otherwise specifically indicated in the terms of sale. In addition offers something no one else in the world offers our exclusive Like New for Life concord Program concord.
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