At a glance
- Period
- 20th century
- Place
- Switzerland
The watchmaking story
A useful place to start with Jean-Léon Reutter's work is Atmos clock. 2
Scope: Broader horology
Why this person is included
Documented original invention
Background and working context
Affiliations and workshops: Atmos; LeCoultre
Geographic ties: Switzerland. Manufacturing association, not a citizenship or residence assertion
Brands, workshops, and other relationships
- Watch / clock product family · Inherited source-linked record; relationship classification reviewed, sources not reopened
Atmos — Designed / developed / supplied for. Invented the Atmos clock concept 123
Legacy affiliation: Atmos; LeCoultre. Person-level contribution: Invented the Atmos clock concept subsequently developed by the LeCoultre manufacture.
Original affiliation wording: Atmos; LeCoultre. No present-day employment or ownership inferred.
- Watch brand / watchmaking business · Inherited source-linked record; relationship classification reviewed, sources not reopened
LeCoultre — Designed / developed / supplied for. Atmos concept subsequently developed by LeCoultre; employment not established 123
Legacy affiliation: Atmos; LeCoultre. Person-level contribution: Invented the Atmos clock concept subsequently developed by the LeCoultre manufacture.
Original affiliation wording: Atmos; LeCoultre. No present-day employment or ownership inferred.
Evidence and limitations
This dossier connects 3 field-specific evidence records with 3 public sources. Known links only; full career not established
Claim qualifications (3)
- Noteworthy contribution: Reutter's prototype and later collaboration are distinct from manufacture of all subsequent Atmos models. Temperature variation is an external energy source, not perpetual motion. 2
- Representative work: Reutter's prototype and later collaboration are distinct from manufacture of all subsequent Atmos models. Temperature variation is an external energy source, not perpetual motion. 2
- Specific role: Reutter's prototype and later collaboration are distinct from manufacture of all subsequent Atmos models. Temperature variation is an external energy source, not perpetual motion. 2
Sources
- The history of Jaeger-LeCoultreJaeger-LeCoultre · First-party / official · Not stated
[S0073] Jaeger-LeCoultre. "The history of Jaeger-LeCoultre." Not stated. https://www.jaeger-lecoultre.com/ez-en/our-maison/manufacture-since-1833/history-of-jaeger-lecoultre Accessed 2026-09-13.
Source context
Relationship to subject: Subject / successor organization
How it was checked: Access failed — alternative sources used
Limitation: Post-consolidation gap-resolution pass: No usable full-page text recovered. New JLC press-history records support only the newly mapped claims.
- Introducing the Perpetual TimekeeperNot stated · Jaeger-LeCoultre · Manufacturer / first-party history · 2026-04-21
[S0282] Jaeger-LeCoultre. "Introducing the Perpetual Timekeeper." 2026-04-21. https://press.jaeger-lecoultre.com/introducing-the-perpetual-timekeeper/ Accessed 2026-09-13. Locator: Chapter I: Atmos, the Story
Source context
Relationship to subject: House exhibition and history
How it was checked: Opened and read
Limitation: Supports Reutter's 1928 prototype and temperature-powered principle. Promotional perpetual-motion/priority wording and detailed commercial chronology are not adopted. Post-consolidation gap-resolution pass: Supports Reutter's 1928 prototype and temperature-powered principle. Promotional perpetual-motion/priority wording and detailed commercial chronology are not adopted.
- https://www.jaeger-lecoultre.com/ez-en/our-maison/manufacture-since-1833/history-of-jaeger-lecoultre https://press.jaeger-lecoultre.com/introducing-the-perpetual-timekeeper/linked source
Corrections and stronger evidence
Names, dates, and workshop relationships can change as archives are digitised. If you have a primary source that clarifies this record, use the correction process.
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