Knowledge Center

Professional Authentication Platform

Log InRegister

Crown

Crown with faceted cabochon

Probable

Cartier's winding crowns are set with a faceted stone — commonly a blue synthetic spinel on steel watches and a sapphire on gold ones. The stone is faceted rather than domed, seated square in a machined bezel, and its colour is consistent under different light sources.

Part reference

Brand
Cartier
Material
Steel or gold with synthetic spinel or sapphire cabochon
Identifying marks
Facets are crisp and symmetrical; the stone sits level with no visible adhesive and no gap at the seat. A domed, plastic or dull stone, or one seated crooked, is a common counterfeit tell and an equally common sign of a replacement crown.

Documented variations

Classification

FactoryDocumented as shipped from the factory for this reference and period.PeriodNot original to this watch, but correct for its production period.ServiceFitted by the manufacturer's own service network. Not a defect.AftermarketThird-party part. Affects originality, not authenticity.ModifiedGenuine parts in a configuration the factory did not sell. Affects originality and value, not authenticity.CounterfeitDeceptive reproduction intended to pass as genuine.UnknownEvidence on file does not settle the question.

  • Replacement crown

    ServiceProbable

    Whole production

    Crowns are lost and replaced, including through Cartier's own service network. A correct replacement crown affects originality and not authenticity; an aftermarket one affects both value and the reliability of the crown as evidence.

Documented on these references

Provenance of this record

Sources & Evidence

Primary sourceManufacturer documentation

Cartier — collection and movement specifications

Cartier International

Accessed
2026-08-18

Cited for

This referenceProbable
View source ↗

Last verified: Not yet reviewed