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Chronographs
A chronograph is a specific type of watch that is used as a stopwatch combined with a display watch. A basic chronograph has an independent sweep second hand and a minute sub-dial; it can be started, stopped, and returned to zero by successive pressure on the stem. More complex chronographs use additional Complication (horology), complications and can have multiple sub-dials to measure seconds, minutes, hours and even fractions of a second. In addition, many modern chronographs use moveable bezels as Tachymeter (watch), tachymeters for rapid calculations of speed or distance. Louis Moinet invented the chronograph in 1816 for use in tracking astronomical objects. Chronographs were also used heavily in artillery fire in the mid to late 1800s. More modern uses of chronographs involve aircraft piloting, auto racing, Underwater diving, diving and submarine maneuvering. Since the 1980s, the term ''chronograph'' has also been applied to all Watch#Digital, digital watches that incorpor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nicolas Mathieu Rieussec
Nicolas Mathieu Rieussec (20 July 1781 – 18 June 1866) was a French watchmaker. Surname origin The Rieussec family's birthplace was the town of Lespinassière. Nicolas was the son of Joseph Rieussec, a merchant born in the 18th century in Lespinassière, in Languedoc, then one of the largest provinces in the kingdom of France. Today, Lespinassière is located in Aude, one of the five départements of the Languedoc-Roussillon region. Ancestry Joseph Rieussec was in Paris at the end of 1778, although no one knows when he left his birthplace, the town of Lespinassière, for the kingdom's capital. His wife, Jeanne Michateau, was expecting. On 20 January 1779 she gave birth to their first son, Nicolas Joseph. On 20 July 1781, a few years before the outbreak of a revolution that was to lead to an upheaval in France and all of Europe, a younger brother arrived and was named Nicolas Mathieu Rieussec. The baby was baptised three days after his birth in the parish of Sainte-Mari ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flyback Chronograph
A flyback chronograph is a watch complication, in which the user can use the reset function without the need to first stop the chronograph. In regular chronographs, the user must stop, reset, and restart the chronograph in order to time an event after the chronograph has started. Other names The flyback function is also known by some other names: * Retour-en-vol (french: retour - to return; en - on; vol - flight) * Taylor system * Permanent zero setting Overview The flyback function is a complication inspired by everyday life, as are some other complications: world time, universal time, power reserve. Most flyback chronographs are constructed with the usual crown at 3 o'clock and 2 push-pieces at 2 and 4 o'clock. Usually the flyback function is controlled by the push-piece at 4 o'clock whereas the one at 2 o'clock is used to stop the chronograph. Many chronographs are equipped with the flyback function, especially watches meant for pilots. It is much easier from the point of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Double Chronograph
Double chronograph is a watch that includes two distinct stopwatch mechanisms in order to measure two separate events concurrently and/or comparatively. It is often confused with the flyback chronograph. Other names * Rattrapante chronograph (french: rattraper - the act of recovering, recapturing) * Split-second chronograph * Split chronograph Functioning A watch with a double chronograph has two seconds hands. One hand is superimposed over the other. While one hand moves continuously, the other one can be either stopped, started or reset to zero. The first push releases both hands. While one continues registering the time, the other hand can be repeatedly stopped. In order to stop and bring both hands to zero a watch has a return pusher. The position of the pusher, controlling the split-seconds function is usually at either 10 or 8 o'clock. Brief history The double chronograph was previously called Fly-back second, but nowadays 'Fly-back second' relates to a chronograph wher ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Watch
A watch is a portable timepiece intended to be carried or worn by a person. It is designed to keep a consistent movement despite the motions caused by the person's activities. A wristwatch is designed to be worn around the wrist, attached by a watch strap or other type of bracelet, including metal bands, leather straps or any other kind of bracelet. A pocket watch is designed for a person to carry in a pocket, often attached to a chain. Watches were developed in the 17th century from spring-powered clocks, which appeared as early as the 14th century. During most of its history the watch was a mechanical device, driven by clockwork, powered by winding a mainspring, and keeping time with an oscillating balance wheel. These are called ''mechanical watches''. In the 1960s the electronic ''quartz watch'' was invented, which was powered by a battery and kept time with a vibrating quartz crystal. By the 1980s the quartz watch had taken over most of the market from the mechani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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