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Clasp

Glidelock extension clasp

High confidence

A toothed extension system inside the clasp allowing the bracelet to be lengthened in small increments without tools, fitted to the modern Submariner, Sea-Dweller and Deepsea. It is a precision mechanism: the adjustment steps engage positively and hold under load.

Part reference

Brand
Rolex
Material
Oystersteel or precious metal to match the bracelet
Introduced
2008
Identifying marks
Adjustment steps engage with a defined click and do not creep under tension. The clasp cover is stamped with the crown and closes flush with no rocking. Machining inside the clasp is clean, with no casting texture.

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 clasp fitted at service

    ServiceProbable

    Whole production

    Clasps wear and are replaced. A replacement is a service observation rather than a finding, and it also means the clasp's own date code no longer relates to the watch.

Documented on these references

Provenance of this record

Sources & Evidence

Primary sourceManufacturer documentation

Rolex — current collection specifications and technical pages

Rolex SA

Accessed
2026-08-18

Cited for

This referenceHigh confidence
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Last verified: Not yet reviewed