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Crown

Big Pilot oversized conical crown

Probable

The oversized conical crown descends from the observation watches designed to be wound and set by a navigator wearing flying gloves. Its size is functional, and its shape and knurling are specified rather than decorative.

Part reference

Brand
IWC
Material
Stainless steel or precious metal to match the case
Identifying marks
Deep, evenly cut knurling with sharp ridges; the crown seats square against the case with no wobble and winds smoothly through its full travel. Shallow or unevenly cut knurling is a common indicator against a replacement or reproduction 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 among the most frequently replaced parts on any watch. A correct replacement affects originality and not authenticity; an aftermarket one affects both value and the crown's usefulness as evidence.

Documented on these references

Provenance of this record

Sources & Evidence

Primary sourceManufacturer documentation

IWC — collection and caliber specifications

IWC Schaffhausen

Accessed
2026-08-18

Cited for

This referenceProbable
View source ↗

Last verified: Not yet reviewed