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Frederique Constant FC-775

Probable

The brand's most substantial technical claim: a perpetual calendar at roughly a tenth of the usual entry price for the complication. Its integration matters for authentication — an integrated calendar reads as part of the movement from the back, where a module sits above the base as a visibly separate plate, and the difference between the two is both structural and financial.

Specifications

Movement manufacturer
Frederique Constant
Production
2016–present
Winding
automatic
Complications
Perpetual calendar · Moonphase · Centre seconds

Architecture

An in-house automatic with a perpetual calendar: day, date, month, leap-year indication and moonphase, with the calendar works integrated rather than mounted as a module.

Authentication notes

  • MovementProbable

    Advance the calendar through a 30-day month end

    The definitive test. A perpetual calendar steps from the 30th of a short month directly to the 1st; an annual calendar manages most short months and fails February; a simple calendar shows a 31st. The leap-year indicator should also advance in step. The calendar can be wound forward by hand, so this takes minutes rather than months, and it settles the complication completely.

  • MovementProbable

    Integrated calendar works look different from a module

    Through the display back, an integrated perpetual calendar is part of the movement's architecture. A modular one sits above a recognisable base movement as a separate plate carrying the calendar works. Both are legitimate constructions in the industry; only one is what this reference claims.

Service practice

An in-house caliber, so parts run through Frederique Constant rather than the generic supply chain. Perpetual calendar mechanisms are also delicate to set: forcing the correctors while the calendar is changing over can damage them, which is a real service consideration on any calendar watch.

Related calibers

References using this caliber

Provenance of this record

Sources & Evidence

Primary sourceManufacturer documentation

Frederique Constant — collection and manufacture caliber specifications

Frederique Constant (Citizen Watch Co.)

Accessed
2026-08-19

Cited for

This referenceHigh confidence
View source ↗
Secondary sourceSpecialist publication

Specialist coverage of the Frederique Constant manufacture calibers and silicon programme

Established horological publications

Accessed
2026-08-19

Cited for

This referenceProbable

Last verified: Not yet reviewed