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Jaeger-LeCoultre's Atmos clock on display. Atmos is the brand name of a mechanical torsion pendulum clock manufactured by Jaeger-LeCoultre in Switzerland. The clock gets the energy it needs to run from temperature changes in the environment and does not need to be wound manually. It can run for years without human intervention.
In 1951, Jaeger-LeCoultre's first alarm wristwatch was released under the name Memovox. [1] The company Vulcain had already produced the world's first alarm wristwatch named cricket in 1949. These first Memovox models were equipped with the watch calibres K489, K489/1 or K601, which were wound manually. [ 2 ]
Manufacture Jaeger-LeCoultre SA, or simply Jaeger-LeCoultre (French pronunciation: [ʒeʒɛʁ ləkultʁ]), [2] is a Swiss luxury watch and clock manufacturer founded by Antoine LeCoultre in 1833 and is based in Le Sentier, Switzerland. [3] Since 2000, the company has been a fully owned subsidiary of the Swiss luxury group Richemont. [4]
In 1948, Jaeger-LeCoultre introduced a power reserve indicator designed for production in a series of watches called the Powermatic which utilized the LeCoultre Caliber 481. Thus, Jaeger-LeCoultre was ostensibly the first watchmaking company to launch wristwatches with a power reserve indicator to the masses.
Jaeger-LeCoultre's first wristwatch tourbillon was introduced in 1993 (though JLC had produced tourbillons prior to that, including the famous observatory competition caliber 170) and in 2004 the company introduced the Gyrotourbillon I. Gyrotourbillon I is a double-axis tourbillon with a perpetual calendar and equation of time, and since then ...
It was manufactured between 1951 and 1959 by the Swiss watch manufacturer Jaeger-LeCoultre. The Futurematic was the world's first watch without a crown for winding the mainspring, having a flat crown on the back that was used solely for setting the time. [2]
The Hybris Mechanica Grande Sonnerie is the world's second most complicated wristwatch. Powered by the Jaeger LeCoultre Calibre 182 movement, with 27 complications and over 1300 parts. The movement is housed in a 44mm by 15mm 18k white gold case. [20]
The Atmos clock, made by Jaeger-LeCoultre, is a type of torsion pendulum clock that winds itself. The mainspring which powers the clock's wheels is kept wound by small changes in atmospheric pressure and/or local temperature, using a bellows mechanism. Thus no winding key or battery is needed, and it can run for years without human intervention.