Jaeger LeCoultre's Atmos 561 Clock by Marc Newson
Suspended in a bubble block of Baccarat crystal and powered by temperature change, Jaeger LeCoultre's Atmos 561 mechanical clock is the work of Australian super-designer Marc Newson (known for designing the Ikepod watch and a million other sleek objects). Newson is reportedly a huge fan of the Atmos and approached the company to collaborate. The result is this eightieth anniversary Atmos.
Using small temperature changes in the encapsulated environment for power, Atmos clocks can run for years without human intervention. Their power source is a hermetically sealed capsule containing a mixture of gas and liquid ethyl chloride, which expands into a chamber as the temperature rises, compressing a spiral spring; with a fall in temperature the gas condenses and the spring slackens. This motion constantly winds the mainspring. A variation in temperature of only one degree in the range between 15 and 30 degrees Celsius is sufficient for two days of operation.
Side views via Jlc.watchprosite.com
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