Jaeger-LeCoultre Atmos Perpetual Motion Clock, 20th Cent.

Technical characteristics

Type

Mantel clock

Jewels

15 jewels

Caliber

Caliber 528-8

Dimensions

H: 9.25" x W: 6.5" x L: 8.5"

Dial Marking

Jaeger-LeCoultre Swiss Made, Atmos

Case Material

Polished brass, five panel glass case

Place recorded

Switzerland

Maker / attribution

Jaeger-LeCoultre

Design

Visible features

• Square dial ring with applied gold-tone Arabic numerals at 3, 6, 9, and 12 alongside dagger-style hour markers • Open center dial displaying the gilded clockwork mechanism and hands • Fluted cylindrical balance pendulum suspended beneath the movement • Beveled rectangular brass base with an integrated locking lever visible at the front left

Dial and Visual Architecture

The mantel clock is housed within an enclosure described by the cataloguer as a polished brass, five panel glass case, resting upon a beveled rectangular brass base. The visible front display features a square dial ring set with applied gold-tone Arabic numerals at the quarters (3, 6, 9, and 12) alongside dagger-style hour markers, while the center of the dial remains open to expose the gilded clockwork mechanism and hands. A fluted cylindrical balance pendulum is suspended directly beneath the movement assembly, with an integrated locking lever visible at the front left of the base. Inscriptions on the dial read 'Jaeger-LeCoultre Swiss Made, Atmos'.

Reported Movement and Markings

The clockwork mechanism is reported by the auction house to feature 15 jewels. Additional identifying inscriptions are cited by the auctioneer as appearing on the exterior metal components rather than the dial face. According to the listing description, the case back is marked 'LeCoultre & Cie, Swiss' and the underside is inscribed 'LeCoultre & Cie, Metal Caliber 528-8 Swiss'. These marks identify the unit as Caliber 528-8, though neither the case back nor the underside is visible in the provided photograph.

Dating and Physical Condition Limitations

The cataloguer provides a broad chronological attribution of '20th Cent.' and states the clock's origin as Switzerland. Stated physical dimensions are 9.25 inches in height, 6.5 inches in width, and 8.5 inches in length. Regarding preservation, the auction description notes 'Mild scuffing' alongside a general assessment of great overall condition. The source documentation does not record an individual movement serial number, and mechanical functionality or operational status is not detailed in the listing.

Identification

Reference

Caliber 528-8

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.