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Jaeger-LeCoultre Atmos du Millénaire Atlantis Clock

ProbableCredible evidence exists but classification is not fully established.

Record status

Individual type · partial

Period

From 1999

The Atmos du Millénaire 'Atlantis' is a specialized barometric change-driven clock produced by Jaeger Le Coultre from 1999, intended as part of an annual series of 50 units.

Constructed from stainless steel and bevelled glass panels, the clock features a wedge-shaped profile supported by three conical feet and includes an integrated spirit level for leveling. The movement operates via a vacuum chamber that winds the mainspring, utilizing temperature and barometric pressure fluctuations to power an annular tension pendulum. The white lacquered dial incorporates a 12-month indicator, moon phases with a lunar calendar, and a distinctive spiral scale calibrated for years extending to 3000.

It is designed to function without manual winding for extended periods. The entire assembly measures 27 x 25 x 14 centimeters and is accompanied by a fitted presentation box as described in the accompanying auction details.

Evidence at a glance

Linked sources
1
Photograph views
1
Catalogue references
0

Counts describe this entry’s documentation, not authenticity, rarity or completeness. Photographs may show one specimen; check each caption and licence.

Technical characteristics

Type
Atmos clock
Maker
Jaeger Le Coultre
Model
Atmos du Millénaire 'Atlantis'
Materials
Stainless steel and glass
Dimensions
27 x 25 x 14 cm
Power source
Barometric change-driven
Calendar range
Up to the year 3000
Movement details
Vacuum chamber winding and annular tension pendulum
Maker / attribution
Jaeger Le Coultre

Design

Visible features
• Wedge-shaped glass case with bevelled edges • Three conical stainless steel support feet • Spiral calendar scale extending to year 3000 • Moon phase aperture positioned at lower dial
Movement and Mechanism
The clock is powered by a mechanical movement that requires no manual winding, instead utilizing a vacuum chamber that responds to fluctuations in temperature and barometric pressure. The movement incorporates a lever escapement, which is regulated by an annular tension pendulum. The mechanism includes a locking lever situated above the pendulum disc for safety during transport or storage, and a regulator positioned at the top of the assembly. Designed to function for extended periods without external input, the movement leverages even slight environmental changes to maintain its operation. According to the provided information, a temperature variation of a single degree is sufficient to power the clock for approximately two days of operation.
Provenance and Condition
The auction description lists this clock as the property of a Chinese Gentleman. Regarding the current condition, the auction documentation provides a grading of 'AA' for the overall object, with individual grades of 2 for the case, movement, and dial. The clock is provided with a fitted box as part of the lot.
Case and Dial Construction
The case is constructed from glass panels with bevelled edges, arranged in a wedge-shaped configuration. It is elevated by three conical stainless steel feet that provide stability and a distinct visual profile. An integrated spirit level is inset within the structure to ensure proper positioning on a level surface. The dial is finished in white lacquer and features baton indexes, a central minute ring, and a separate disc for months. The lower portion of the dial displays a moon phase aperture integrated with a lunar calendar. A prominent feature is the outer spiral scale, which tracks individual years up to the year 3000, catering to the millennial theme of the timepiece.

Identification

Reference
Atmos du Millénaire 'Atlantis'
Source note
Facts transcribed from the linked source listing or collection record. Attribution and specifications are source-reported and have not been independently authenticated.

Catalogue references

No catalogue numbers recorded. Numbers are only published once transcribed from a verified edition of a standard catalogue — they are never inferred.

Research required

  • Research required: Total production quantity per year is stated as 'according to' the manufacturer
  • Research required: Exact serial number for this specific unit is not provided in the source
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