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Mass-produced#1 in family

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Movement tier: unclassified · caliber Frederique Constant Cal. FC-775: in-house automatic perpetual calendar, 28,800bph, 38h PR; used in Highlife Perpetual Cal.; democratically priced perpetual calendar · 38h power reserve
Medium-large: suits wrists 6.5 in+ (16.5 cm+)
41 mm case. Wears confidently on average to larger wrists. May overhang on slender builds.

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Authentication

In-house FC-775 perpetual calendar; all four perpetual indications must advance correctly, and the integrated bracelet end links must be FC-signed.

Known issues in the market
  • Never advance the calendar between 9pm and midnight; forcing the mechanism in this window risks damage.
  • The integrated Highlife bracelet is specific to this reference; aftermarket bracelets are a common replacement on used examples.
AreaWhat to checkWhat is correctRed flag
casebackFC-775 perpetual calendar movementFC-775 in-house movement with perpetual calendar architecture visibleNon-in-house movement; movement swap
braceletIntegrated bracelet end linksFC-signed end links flush with the case; correct Highlife bracelet taperAftermarket bracelet or unsigned end links; replacement bracelet
dialPerpetual calendar indicationsDay, date, month, and leap year indications all correct for current dateAny indication incorrect for the current date; mechanism out of sync
Common legitimate replacements
  • Integrated bracelet; FC OEM only for correct fitment.
  • Crystal; sapphire standard.
Expert resources: Frederique Constant authorized service; FC Highlife Perpetual Calendar press documentation.

Authentication guide

Last reviewed June 2026

The Highlife Perpetual Calendar is FC's integrated-bracelet sport watch with a full perpetual calendar complication; the cushion case and integrated bracelet shape are the visual anchors.

Known reproduction risks

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LOW

Not a significant reproduction target; misrepresentation is more likely to be model substitution (annual calendar sold as perpetual) than a fake case.

  • Confirm four distinct displays: day, date, month, and moonphase; an annual calendar only has three.
  • The perpetual never needs manual date correction except after service.

Dial variants by era

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EraDescriptionIdentifiers
2022 to presentMulti-register perpetual calendar dial with moonphase at 6 o'clock; day, date, and month subdials; cushion case with integrated bracelet. Blue and silver dial options.
  • FC-775 on movement; PERPETUAL CALENDAR on dial
  • Four separate display windows: day, date, month, moonphase
  • Cushion case with articulated integrated bracelet
  • Roman numeral chapter ring

Service part flags

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Perpetual calendar mechanism

Original: Mechanical perpetual calendar corrected by pushers at 2 and 4 o'clock; all displays advance automatically.

Replacement tells
  • A triple-calendar (annual or simple) dial with "PERPETUAL CALENDAR" text is a mismatch; inspect the display closely for mechanical auto-advance.
  • Pushers at 2 and 4 that feel loose or are absent on a purported perpetual calendar variant.
Integrated bracelet

Original: Articulated links with center-brushed and outer-polished finish; signed FC folding clasp.

Replacement tells
  • Aftermarket bracelet with different link width or clasp style.
  • Clasp without FC signature.

Case back markings

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2022 to present
  • FREDERIQUE CONSTANT PERPETUAL CALENDAR
  • FC-775 caliber number
  • SWISS MADE
  • Sapphire caseback showing FC rotor with skeletonized design

Movement tells

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  • The FC-775 is a genuine in-house perpetual calendar; the cam stack and lever set visible through the caseback should show the FC-finished perpetual mechanism, not a simplified annual calendar module.
  • Rotor should carry the FC manufacture engraving and show côtes de Genève.
  • Perpetual calendar mechanisms are complex; any service must be performed by a watchmaker familiar with the FC-775 complication.
Sources: Frédérique Constant Highlife Perpetual Calendar; Revolution Watch — FC Highlife Perpetual.

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