Who invented Atmos clock?

Who invented Atmos clock?

one Jean-Léon Reutter
The first Atmos clock was designed by one Jean-Léon Reutter, who started making them in 1928 (there were earlier clocks made that used temp changes for power but they used bimetallic strips – of brass/steel – that flex back and forth as temp changes; this is the same principle behind compensating balances and for that …

When was the first Atmos clock made?

1928
The first Atmos clock was born in 1928 when a Neuchatel engineer called Jean-Leon Reutter built a clock driven quite literally by air. Alongside work within the Jaeger-LeCoultre workshop, the Atmos clock was crafted in 1936 into a technical marvel that could not only be patented but work functionally.

How much is an Atmos clock worth?

The value of an Atmos clock may lie in its condition more than in its serial number or age. The most common Atmos types in fairly good condition can fetch anywhere from $300 to upward of $1,000. This is for model numbers 519, 526, 528 and 540. These clocks have the standard brass and gold-plated cases.

How does Jaeger LeCoultre Atmos work?

When the temperature rises, the gas expands, which in turn expands the capsule. When the temperature falls, the gas contracts, which in turn reduces the size of the capsule. Each time the capsule changes, it activates a small chain, which winds the clock. The genius of the system lies in its extreme sensitivity.

Where is the serial number located on an Atmos clock?

The Serial Number of an Atmos Clock is usually located on the top of the Movement, by the Speed Adjustment Lever.

How do I know what model my Atmos clock is?

The Serial Number of an Atmos Clock is usually located on the top of the Movement, by the Speed Adjustment Lever. On some very older models, the serial number may actually be on the front of the Movement -near the hands and on Antique Reutter Clocks the serial number is often on the Back “Drum” portion.

How do I date my Atmos clock?

There is a simple formula for dating Atmos clocks made in 1954 or later. Take the serial number and divide it by 20,000. Add that to 1954, and you should be within a year or two. Your clock is right around 1954, maybe 1955.

When did Jaeger LeCoultre start making timepieces?

While building wrist-borne timepieces remains Jaeger-LeCoultre’s primary vocation, the company continues to release, year after year and often in limited numbers, new variations on the Atmos, an invention that traces its origins all the way back to 1928.

When did Jaeger LeCoultre make the first Atmos?

But it took the Jaeger-LeCoultre workshop a few more years to convert this idea into a technical form that could be patented. And to perfect it to such a degree that the Atmos practically achieved perpetual motion. In 1936 production of the Atmos began.

When did Jaeger and LeCoultre merge their companies?

In the interim, specifically in 1937, Jaeger and LeCoultre merged their companies into the firm we know today, thus ensuring the Atmos clock would be known henceforth as a Jaeger-LeCoultre product.

Why did Jaeger LeCoultre create the Geophysic chronometer?

In honour of the International Geophysical Year in 1958, Jaeger-LeCoultre created a watch protected against magnetic fields, water and shocks. The Geophysic chronometer was proposed by long-time employee Jules-César Savary as a watch intended for scientific bases in Antarctica.