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The Encyclopedia of Horology

Clock · Atmos table clock

Jaeger-LeCoultre 'Atmos' Table Clock with Month and Moon Phases

Partially verified

This Jaeger-LeCoultre 'Atmos' table clock, reference Q5111202 with movement number 749'053, is dated circa 2012 by the auction house. Encased in gilt brass and glass measuring 20 by 15.5 by 22 cm, the mechanical clock is driven by changes in atmospheric pressure. It features a silvered chapter ring with Roman numerals, blued hands, an inner ring displaying the months in French, and a moon phase indicator above the six o'clock position. Christie's notes the clock is accompanied by a guarantee certificate dated 2012 and product literature.

Front view of Jaeger-LeCoultre gilt brass Atmos table clock with month and moon phases
Front view of Jaeger-LeCoultre gilt brass Atmos table clock with month and moon phases — Christie's. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
onlineonly.christies.com
Category
Clock · Atmos table clock
Maker / attribution
Jaeger-LeCoultre
Reference
Q5111202
Catalogue / lot identifier
329
Source-reported date
circa 2012
Country
Switzerland
Source-reported serial
749'053

Source-reported attribution and specifications are not independent authentication. A listing does not establish present ownership, current display, availability or permission to reproduce.

Object description

Identity and Documentation

Catalogued under reference Q5111202 with movement number 749'053, this Jaeger-LeCoultre 'Atmos' table clock is dated circa 2012 by Christie's.

The lot listing states that no box is included, but confirms papers are present, specifically itemized as a guarantee certificate dated 2012 and product literature.

Evidence for this section
  • “REF. Q5111202, NO: 749'053”
  • “CIRCA: 2012”
  • “BOX: No”
  • “PAPERS: Yes”
  • “WITH: Guarantee Certificate dated 2012, product literature”

Case Structure and Condition

The clock is constructed from gilt brass, with dimensions listed as 20 by 15.5 by 22 cm (width, length, and height). Visual observation records a glazed gilt brass case with corner pillars and a stepped base, fitted with a bubble spirit level centered at the front of the inner base plate.

In the auctioneer's condition report, the case is noted as having scratches and dents.

Evidence for this section
  • “CASE MATERIAL: Gilt brass”
  • “CASE DIAMETER: 20 x 15.5 x 22 cm. (W x L x H)”
  • “Glazed gilt brass case with corner pillars and stepped base”
  • “Bubble spirit level mounted centered at the front of the inner base plate”
  • “Case: With scratches and dents.”

Dial Display and Movement Characteristics

The dial is described as silvered, with visible black Roman hour markers and blued hands. Direct inspection also reveals an inner month scale printed in French visible through an openwork center, alongside a moon phase display positioned directly above 6 o'clock with an 'ATMOS' signature below.

The movement is catalogued as mechanical and wound by changes in atmospheric pressure, providing functions for month and moon phases. Beneath the dial, a large cylindrical torsion pendulum balance wheel is visibly suspended. The condition report notes that the movement was ticking at the time of cataloguing with a service recommended, noting that future operation is not guaranteed.

Evidence for this section
  • “DIAL: Silvered”
  • “FUNCTIONS: Moon phases, month”
  • “MOVEMENT: Wound by changes in atmospheric pressure, mechanical”
  • “Silvered chapter ring with black Roman hour markers and blued hands”
  • “Inner month scale printed in French showing calendar progression through the openwork center”
  • “Moon phase aperture situated directly above the 6 o'clock position with 'ATMOS' signature below”
  • “Large cylindrical balance wheel of the torsion pendulum suspended beneath the dial mechanism”
  • “Movement: The movement is ticking at the time of cataloguing; however, a service is recommended.”

Open research questions

  • Which retailer or region of original sale is entered on the 2012 guarantee certificate?
  • What is the mechanical condition of the rear expansion bellows chamber, which is obscured in frontal photography?
  • Where are the noted scratches and dents located on the gilt brass frame, and are the glass panels intact without chipping?

Source evidence

Recorded claims and source quotations for Jaeger-LeCoultre 'Atmos' Table Clock with Month and Moon Phases
FieldSource-reported valueSource quotation
ReferenceQ5111202“REF. Q5111202”
Movement Number749'053“NO: 749'053”
Case MaterialGilt brass“CASE MATERIAL: Gilt brass”
Case Diameter / Dimensions20 x 15.5 x 22 cm. (W x L x H)“CASE DIAMETER: 20 x 15.5 x 22 cm. (W x L x H)”
DialSilvered“DIAL: Silvered”
MovementWound by changes in atmospheric pressure, mechanical“MOVEMENT: Wound by changes in atmospheric pressure, mechanical”
FunctionsMoon phases, month“FUNCTIONS: Moon phases, month”
Circa2012“CIRCA: 2012”
BoxNo“BOX: No”
PapersYes“PAPERS: Yes”
Accompanying ItemsGuarantee Certificate dated 2012, product literature“WITH: Guarantee Certificate dated 2012, product literature”
Movement Cataloguing StateTicking at cataloguing; service recommended“Movement: The movement is ticking at the time of cataloguing; however, a service is recommended.”

Visible details

  • Glazed gilt brass case with corner pillars and stepped base
  • Bubble spirit level mounted centered at the front of the inner base plate
  • Silvered chapter ring with black Roman hour markers and blued hands
  • Inner month scale printed in French showing calendar progression through the openwork center
  • Moon phase aperture situated directly above the 6 o'clock position with 'ATMOS' signature below
  • Large cylindrical balance wheel of the torsion pendulum suspended beneath the dial mechanism

Research qualifications

  • Christie's condition report notes the case exhibits scratches and dents.
  • Internal bellows mechanism and reverse side are not visible in the primary frontal image.

Photograph identity and source facts were screened before import; rights clearance remains pending.

Terms in this record

Glossary explanations for terms named in this object’s record.