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Watchmaker profile

Marc Jenni

Marc Jenni developed Prologue watches using a rotating case ring and function selector in place of a conventional crown. 1

Maker-authored product history and CV; does not assert current membership, current appointments or entirely in-house component production.

At a glance

Dates
1977–? 21977 and Zurich are explicit in the maker's own CV, not independent civil records.

The watchmaking story

Useful places to start with Marc Jenni's work include Prologue P01 and P02, Arch A01, and JJJ models. 1

The record connects Marc Jenni's own watchmaking practice with Nobletime and Marc Jenni. 123

Sources associate Marc Jenni with earlier Tiffany & Co. watch services, although the precise role remains unresolved. 123

Recognition: AHCI membership, 2012–2017 (self-reported historical interval) 2

Scope: Direct watchmaking

Why this person is included

Documented individual contribution

Background and working context

Affiliations and workshops: Nobletime; Marc Jenni; earlier Tiffany & Co. watch services 2

Documented origin: Zurich, Switzerland 2

Geographic ties: Switzerland; United States. Documented workplace / industry location 2

Brands, workshops, and other relationships

  1. Watch brand / watchmaking business · Inherited source-linked record; relationship classification reviewed, sources not reopened

    Nobletime — Own watchmaking practice. Watchmaker and mechanism designer 123

    Legacy affiliation: Nobletime; Marc Jenni; earlier Tiffany & Co. watch services. Person-level contribution: Developed Prologue watches using a rotating case ring and function selector in place of a conventional crown.

    Original affiliation wording: Nobletime; Marc Jenni; earlier Tiffany & Co. watch services. No present-day employment or ownership inferred.

  2. Watch brand / watchmaking business · Inherited source-linked record; relationship classification reviewed, sources not reopened

    Marc Jenni — Own watchmaking practice. Watchmaker and mechanism designer 123

    Legacy affiliation: Nobletime; Marc Jenni; earlier Tiffany & Co. watch services. Person-level contribution: Developed Prologue watches using a rotating case ring and function selector in place of a conventional crown.

    Original affiliation wording: Nobletime; Marc Jenni; earlier Tiffany & Co. watch services. No present-day employment or ownership inferred.

  3. Watch brand / watchmaking business · Inherited source-linked record; relationship classification reviewed, sources not reopened

    earlier Tiffany & Co. watch services — Association — role unresolved. Watchmaker and mechanism designer 123

    Legacy affiliation: Nobletime; Marc Jenni; earlier Tiffany & Co. watch services. Person-level contribution: Developed Prologue watches using a rotating case ring and function selector in place of a conventional crown.

    Original affiliation wording: Nobletime; Marc Jenni; earlier Tiffany & Co. watch services. No present-day employment or ownership inferred.

Evidence and limitations

This dossier connects 9 field-specific evidence records with 3 public sources. Known links only; full career not established; unresolved relationship(s) remain

Claim qualifications (9)
  • Noteworthy contribution: Maker's own technical/project account; no independently measured performance claim. Locator: Prologue function-control description and 2010–2015 model list. 1
  • Representative work: Maker's own technical/project account; no independently measured performance claim. Locator: Prologue function-control description and 2010–2015 model list. 1
  • Specific role: Maker's own technical/project account; no independently measured performance claim. Locator: Prologue function-control description and 2010–2015 model list. 1
  • Full name: Self-authored résumé; dated past positions are not asserted to be current. Locator: Personal information, career history and association-membership entries. 2
  • Birth year: Self-authored résumé; dated past positions are not asserted to be current. Locator: Personal information, career history and association-membership entries. 2
  • Documented origin: Self-authored résumé; dated past positions are not asserted to be current. Locator: Personal information, career history and association-membership entries. 2
  • Geographic ties: Self-authored résumé; dated past positions are not asserted to be current. Locator: Personal information, career history and association-membership entries. 2
  • Affiliations / workshops: Self-authored résumé; dated past positions are not asserted to be current. Locator: Personal information, career history and association-membership entries. 2
  • Recognition: Self-authored résumé; dated past positions are not asserted to be current. Locator: Personal information, career history and association-membership entries. 2

Sources

  1. Marc Jenni — project summaryNobletime Ltd. · Maker project documentation · Not stated

    [S0292] Nobletime Ltd.. "Marc Jenni — project summary." Not stated. https://www.nobletime.com/marc-jenni Accessed 2026-09-13. Locator: Prologue P01 launch and ring-control description

    Source context

    Relationship to subject: Maker's own project account

    How it was checked: Opened and text inspected

    Limitation: Describes 2010–2015 project history; not a current availability statement or independent patent verification.

  2. Personal ResumeMarc Jenni · Nobletime Ltd. · Maker curriculum vitae · Not stated

    [S0293] Marc Jenni. Nobletime Ltd.. "Personal Resume." Not stated. https://www.nobletime.com/careers-1 Accessed 2026-09-13. Locator: Career chronology

    Source context

    Relationship to subject: Subject-authored career history

    How it was checked: Opened and text inspected

    Limitation: Self-reported roles; not independently corroborated. No birth year inferred.

  3. https://www.nobletime.com/marc-jenni https://www.nobletime.com/careers-1linked 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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