Temperature differences are indicators of potential energy, and the Atmos 561 clock takes advantage of this as it uses that energy difference to power itself. Designed by Marc Newson, the mechanical clock, which is encased in a solid block of crystal to emphasize the point, never needs winding yet keeps on ticking. The self-winding clock was built to mark the 80th anniversary of Swiss Maker Jaeger LeCoultre.
how does it work? Embedded in the clock is a capsule containing gas and ethyl chloride. When a temperature change is detected, the gas mixture expands, physical compressing a spiral spring. When the temperature falls, the capsule contracts, setting up for the next cycle. The assembly no doubt is designed to be wound one direction, with a small ratcheting mechanism that keeps the spring wound as the capsule contracts.
But is it effective? The Atmos 561 can run up to two days from a 1 degree Celsius temperature change. I have to say, the clock is a truly impressive work of applied mechanics, to the point to where it is an art form.
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