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Audemars Piguet 4401

High confidence

AP's first fully integrated in-house chronograph in the Royal Oak, replacing the modular construction of the earlier generation. Flyback function is the field test: pressing the reset while running should restart the chronograph from zero rather than requiring a stop first. An earlier Royal Oak Chronograph will not do this.

Specifications

Movement manufacturer
Audemars Piguet
Production
2019–present
Frequency
28,800 vph (4 Hz)
Jewels
40
Power reserve
70 hours
Winding
automatic
Complications
Chronograph · Flyback · Date · Column wheel

Architecture

In-house integrated automatic chronograph with a column wheel and flyback, and an integrated rather than modular construction.

Related calibers

References using this caliber

Provenance of this record

Sources & Evidence

Primary sourceManufacturer documentation

Audemars Piguet — collection and caliber specifications

Audemars Piguet

Accessed
2026-08-18

Cited for

This referenceHigh confidence
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Last verified: Not yet reviewed