Enjoy Watches

Brand history & owner guide

Frederique Constant

Frederique Constant says Aletta and Peter Stas began designing its collection in 1988; Citizen announced its acquisition of the group in 2016. 13

A brand-context guide, not an authentication, valuation or model-reference guide.

At a glance

Creation
1988 1
First collection
1992 1
Heart Beat
1994 1
Ownership context
Citizen acquisition, 2016 3

Browse Frederique Constant watches →

Selected reference records

12 documented configurations from 4 model names. These records are a selection, not the full Frederique Constant catalogue.

Browse 12 recorded Frederique Constant configurations →

A 1988 beginning

Frederique Constant’s official history says Aletta and Peter Stas began designing their own watch collection in 1988. The brand locates its current watchmaking operation in Geneva.

This is brand context, not proof of the age or original specification of an individual watch. 1

The first collection

The official brand timeline dates the 18th Century Collection to 1992 and says it used Swiss movements assembled by a Geneva watchmaker.

When identifying an early model, compare its precise reference and details with dated material rather than using the broad collection date alone. 1

Heart Beat as a dated design milestone

Frederique Constant dates its first Heart Beat timepiece to 1994, describing an aperture at 12 o’clock that shows the mechanical movement. The brand says this later became a signature.

A dial opening or similar styling should still be compared to a correct period reference before attribution. 1

Manufacture history

A Frederique Constant manufacturer document says the firm began developing and producing its own in-house calibres in 2004, becoming a Manufacture in its terminology.

That company-level milestone does not establish that every Frederique Constant watch has an in-house calibre. 2

Citizen Watch Group acquisition

Citizen Watch Co. announced in 2016 that it would acquire Frederique Constant. Ownership history helps place the brand in context, but does not establish individual-watch production dates or specifications.

Use model-specific documentation for those questions. 3

Research by reference and movement

Record the exact reference, case-back text, dial details, movement marking, complications and dimensions. Compare them against dated official catalogues, manuals or product records.

This guide does not authenticate or value a watch. 12

Key dates

  1. 1988

    Creation

    Aletta and Peter Stas began designing the collection. 1

  2. 1992

    First collection

    The 18th Century Collection was released. 1

  3. 1994

    First Heart Beat

    Frederique Constant dates its first Heart Beat timepiece to 1994. 1

  4. 2004

    Manufacture milestone

    The manufacturer document dates in-house calibre development to 2004. 2

  5. 2016

    Citizen acquisition

    Citizen announced its acquisition of Frederique Constant. 3

Ownership and continuity

Official material links a 1988 creation to early collection and Heart Beat milestones, a 2004 manufacture claim and a 2016 Citizen acquisition. 123

Watchmakers and designers linked to Frederique Constant

These people have a sourced relationship to this brand in the Enjoy Watches register. The label beside each name states the relationship recorded; it should not be read as a broader employment or ownership claim.

Identification and service

For an individual watch, record the complete reference, serial, dial, case, and movement markings and compare them with dated primary documentation.

A brand history cannot authenticate, appraise, or establish the provenance of a particular watch.

Evidence and limits

How the claims are supported
  1. source stated claim

    Frederique Constant says Aletta and Peter Stas began designing their own watch collection in 1988.

  2. source stated claim

    Frederique Constant dates the 18th Century Collection to 1992 and says it used Swiss movements assembled by a Geneva watchmaker.

  3. source stated claim

    Frederique Constant dates its first Heart Beat timepiece to 1994 and says the design later became a brand signature.

  4. source stated claim

    A Frederique Constant manufacturer document says the firm began developing and producing in-house calibres in 2004 and became a Manufacture.

  5. source stated claim

    Citizen Watch Co. announced the acquisition of Frederique Constant in 2016.

Known limits

  • This guide does not authenticate or value an individual watch.
  • Company history and manufacture status do not establish the movement or specification of every Frederique Constant watch.

Direct sources

  1. A Brand Story made in GenevaFrederique Constant · official history · accessed September 12, 2026

    Locator: Official history timeline. First-party source; its statements remain attributed.

  2. Frederique Constant Guarantee and Instructions BookletFrederique Constant · official product document · accessed September 12, 2026

    Locator: Manufacturer history. First-party source; its statements remain attributed.

  3. Citizen Watch Co. to acquire Frederique ConstantCitizen Watch Co., Ltd. · official press release · accessed September 12, 2026

    Locator: Official acquisition announcement. First-party source; its statements remain attributed.

Corrections

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