Greven, DE
Details
- Dimensions
- 8.27ʺW × 6.3ʺD × 9.06ʺH
- Styles
- Mid-Century Modern
- Period
- 1950s
- Country of Origin
- Switzerland
- Item Type
- Vintage, Antique or Pre-owned
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- Materials
- Brass
- Condition
- Good Condition, Unknown, Some Imperfections
- Color
- Gold
- Condition Notes
- Very Good — This vintage item has no defects, but it may show slight traces of use\. The clock has … moreVery Good — This vintage item has no defects, but it may show slight traces of use\. The clock has been freshly overhauled and runs absolutely reliably and accurately less
- Description
-
Early atmos clock from jaeger lecoultre
switzerland
brass, partly gold-plated
year of manufacture 1950
dimensions: h x w x d: … more Early atmos clock from jaeger lecoultre
switzerland
brass, partly gold-plated
year of manufacture 1950
dimensions: h x w x d: 23.5 x 21 x 16.5 cm
:
atmos ii in matt brushed case. Blued screws, knurled screw on the front for regulating the rate, rotating pendulum with fine vertical stripes divided into 8 segments.
dial ring with the old, original and slightly tarnished paintwork. As is usual with the early dials - with horizontal 3 and horizontal 9.
unlike today's models, this early atmos clock still had two serial numbers. One for the case and one for the movement.
the serial number of the case can still be read from the top in the usual place: 21989.
the serial number of the movement can be read from the front on the plate: 22717.
year of manufacture: 1950
the rate of the atmos clocks was initially set using a regulating screw from behind above the pressure box. Because the regulating screw was often damaged when the glass cover was lifted, it was moved to the front, in front of the pressure box, in the early 1950s. After a few years, this position was also deemed impractical and from then on the adjustment was made by means of a slide between the movement and the pressure box. This is still the case today.
a very beautiful and absolutely rare clock with a regulating screw that can be operated from the front!
condition:
the clock has been freshly overhauled and runs absolutely reliably and accurately. The photos are not "embellished", the case condition is as shown in the photos.
interesting facts:
in 1927, the young engineer jean-léon reutter presented the prototype of the atmos clock he had developed.
the response in the press was great and so he concluded a contract with the compagnie générale de radiologie, which built and sold the "atmos i" from 1930 under reutter's direction.
as there were repeated problems with the watches, the movements were manufactured by le coultre et cie in switzerland from 1933 and in 1935 the production rights for the atmos clock were transferred to ets. Ed. Jaeger in 1935.
the focus was on developing a simpler and more robust motor, and the era of the atmos from jaeger-lecoultre began in 1938.
the " clock that lives from the air" uses the "breathing movements" of a gas-filled bellows caused by temperature fluctuations to wind the movement.
the movement of the watch stands out with its cylindrical box on the back. Inside, a bellows-shaped expansion chamber contains chloroethyl, a gas that expands particularly strongly between 10 °c and 27 °c.
a temperature difference of just one degree celsius winds the watch for 48 hours. This interesting winding mechanism is complemented by an exquisite movement of extreme precision with a heavy torsion pendulum (rotating pendulum).
the condition for the accuracy of the clock is a stable and vibration-free installation.
also worth mentioning is the absolute environmental friendliness of the clock, which, despite its unlimited running time, does not require a battery or any other electrical drive.
for decades, the atmos has been switzerland's official state gift to prominent visitors, e.g. Politicians from abroad.
[source: jean lebet - living on air / jürgen abeler - ullstein uhrenbuch] this piece has an attribution mark,
i am sure that it is completely authentic and take full responsibility for any authenticity
issues arising from misattribution less
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