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LeCoultre Atmos Torsion-Pendulum Table Clock

ProbableCredible evidence exists but classification is not fully established.

Record status

Individual type · partial

Period

circa 1965

Maker / issuer

LeCoultre

This LeCoultre Atmos table clock, attributed to Switzerland circa 1965, is a gold-plated timepiece utilizing a torsion-pendulum mechanism. The clock features a glazed case and a black ring dial adorned with four applied Arabic numerals and eight indices.

Internally, the clock is powered by a gold-plated movement, specifically calibre 526, which incorporates fausses cotes decoration. The timepiece functions through an aneroid cell that captures changes in barometric pressure, which then winds the movement via a chain and barrel system. The clock measures approximately 22 x 18 x 13.5 cm. The auction description notes that the front glazed door requires replacement, and the clock shows strong traces of corrosion, necessitating an overhaul.

It is categorized by the auction house as condition 4-5.

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

Date
circa 1965
Type
Atmos table clock
Maker
LeCoultre
Mechanism
Torsion-pendulum
Dimensions
22 x 18 x 13,5 cm
Power Source
Barometric pressure
Place recorded
Switzerland
Movement Calibre
526
Country of Origin
Switzerland
Maker / attribution
LeCoultre

Design

Condition
The auction description identifies the object as being in condition 4-5. The primary physical issues noted include significant surface deterioration and mechanical failure. Specific concerns include the presence of strong traces of corrosion on the clock's components. Furthermore, the auction report explicitly states that the mechanism needs to be overhauled to restore its function, in addition to the necessary repair of the glass door.
Case and Dial
The clock is constructed with a gold-plated frame featuring glazed panels, creating an open view of the internal mechanism. A base section at the bottom of the frame includes an engraved badge. The auction description identifies that the front glazed door of this assembly requires replacement. The time is indicated on a black ring dial. This dial is configured with four applied Arabic numerals at the primary cardinal points and eight additional indices interspersed to mark the remaining hours. The gold-plated hands are centrally mounted above the movement plate visible through the center of the ring.
Visible features
• Black ring dial with four applied Arabic numerals and eight indices. • Gold-plated movement identified as calibre 526 with fausses cotes decoration. • Base features an engraved plaque or badge. • Glazed case structure.
Movement and Powering System
The movement is a gold-plated calibre 526, featuring fausses cotes decorative finishes on the plates. Power is derived from changes in ambient barometric pressure, which act upon the aneroid cell. This energy is transmitted through a chain and barrel assembly to wind the mainspring, allowing the clock to operate without manual winding under the right environmental conditions.

Identification

Reference
calibre 526
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: The source states the front glazed door 'has to be replaced'.
  • Research required: The source reports 'strong traces of corrosion' and that the movement 'needs to be overhauled'.
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