TIMEHUNTER
Audemars Piguet Calibre

4407

Openworked-oriented modern chronograph architecture.

Technical Profile

Architecture and specifications

Movement typeAutomatic flyback chronograph
Frequency28,800 vph
Power reserve70 h
Jewels40
ComplicationsFlyback chronograph
ArchitectureManufacture
Reliability profileHigh horology
Service accessSpecialist
TimeHunter Analysis

Collector context

Openworked-oriented modern chronograph architecture. Evaluate the complete watch rather than the calibre in isolation: condition, regulation, service history and correct parts materially affect ownership quality.

A famous calibre can add historical interest, but maintenance condition remains more important than reputation alone.
Related Calibres

2121

Ultra-thin movement famously used in the original Royal Oak.

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3120

Manufacture automatic calibre used across earlier modern collections.

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Watch Glossary