Jaeger LeCoultre Atmos Mantle Clock 15 Jewel, Swiss made, runs well. - $2,000 - (Jefferson, OH)

Good running condition; very pretty and soothing to watch. This is a beautiful and very decorative Vintage Jaeger Le Coultre Atmos Classic brass-mounted four glass mantel skeleton clock bearing their engraved signature on the movement. The clock has a beautiful polished gilt brass rectangular case and can be displayed in it's original display case. The clock self-winds and keeps time by temperature and pressure environmental changes, perpetually spinning the pendulum hence the name 'Atmos'. The clock has an Arabic signed dial with open centre revealing the jewelled movement, sword hands and milled balance. It is a lovely clock which doesn't need to be wound. Condition: In excellent condition and in working order. Dimensions in cm: Height 24 x width 18 x depth 14. Dimensions in inches: Height 9 inches x width 7 inches x depth 5 inches. Atmos clock - invented in 1928 by Jean-Le´on Reutter and then perfected and manufactured by Jaeger-LeCoultre. It is a clock which does not need to be wound manually. It gets the energy it needs to run from temperature and atmospheric pressure changes in the environment and can run for years without human intervention. Its power source is an internal hermetically sealed capsule containing a mixture of gaseous and liquid ethyl chloride which expands into an Expansion 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 temperature variation of only one degree in the range between 15 and 30 degrees Celsius, or a pressure variation of 3 mmHg, is sufficient for two days' operation. In order to run the clock on this small amount of energy, everything inside the Atmos has to work in as friction-free a manner as possible. For timekeeping it uses a torsion pendulum, which consumes less energy than an ordinary pendulum. The torsion pendulum executes only two torsional oscillations per minute, which is 1/30th the rate…

Posted in Jefferson, OH, Collectibles
From ebay.com - 1 month ago