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There are also chronographs with a center seconds hand which can be started, stopped and brought back to zero using one or two push-button on the side of the watch. Other additional ebel functions include second time zone, alarm, moonphase, beluga 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 places most subject to wear due to 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. Soon after its launch in 1952, the NAVITIMER chronograph watch became a favorite with pilots. In addition to its ability to measure short times, this wrist instrument is equipped with a "navigation computer", a circular slide rule able to handle ebel all airborne navigation calculations, such as climbing times or fuel consumption rate, and even to convert beluga 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 watch name to a line of original ebel mechanical chronographs, featuring a wealth of exclusive technical features and naturally all fitted with the famous slide rule. The PROFESSIONAL line encompasses the beluga BREITLING chronographs most specifically watch tailored to the world of aviation. From the EMERGENCY built-in microtransmitter ebel to the electronic sophistication of the B-1, along with the ease of handling typical of AEROSPACE models, BREITLING places its finest technology in the service of pilots. certified preowned watches are available on a 10 day "no questions asked" return policy. We want you to be completely satisfied with your purchase. If for any reason, you are not completely satisfied with our products, simply return them to us within 10 days for a prompt and courteous replacement, beluga exchange or refund, whichever you prefer. We do not refund shipping/insurance charges. New watches and special orders watch are not returnable unless defective in workmanship. Superior craftsmanship and distinctive good looks. Rolex, the ultimate Swiss timepiece... the gift of choice for discerning watch lovers of the ebel rolex collection. beluga Once the movement has successfully watch undergone the rolex examination, it can bear the word "chronometer" on the dial.
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