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Audemars Piguet Royal Oak Offshore Chronograph 44 Carbon — 26400AU

Audemars Piguet

Royal Oak Offshore Chronograph 44 Carbon

26400AU

Forged carbon and ceramic redefine the Offshore's bold geometry.

Estimated market value
$22,800
Confidence: High

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Overview

The Audemars Piguet Royal Oak Offshore Chronograph 44 Carbon (ref. 26400AU) pairs a 44 mm forged carbon case with a black ceramic bezel, pushing the Offshore's signature oversized aesthetic into the realm of high-performance materials. The black Méga Tapisserie dial carries the line's iconic textured pattern while housing a full chronograph layout. Calibre 3126/3840 provides the movement architecture, combining an automatic base with an integrated chronograph module.

History

The Royal Oak Offshore line was conceived in the early 1990s as a deliberately larger, more assertive counterpart to the original Royal Oak, and it quickly became a canvas for material experimentation. Reference 26400AU entered the collection around 2015, representing the Offshore's embrace of forged carbon — a composite material prized for its rigidity, low weight, and distinctive mottled surface pattern. The reference remained in production until approximately 2021, during which time it occupied a prominent position in the Offshore catalogue as one of the most technically material-forward executions of the 44 mm chronograph. Its combination of forged carbon and black ceramic became a benchmark for how the line could translate motorsport-inspired materials into haute horlogerie.

Notable points

  • Forged carbon case: the material is produced by compressing carbon fibres under heat and pressure, yielding a unique, non-repeating surface pattern on every case.
  • Black ceramic bezel: ceramic offers exceptional scratch resistance and a deep, consistent colour that complements the carbon's organic texture.
  • Méga Tapisserie dial: an enlarged version of the Grande Tapisserie check pattern, machined directly into the dial surface and a hallmark of the Royal Oak Offshore identity.
  • Calibre 3126/3840: an in-house movement combining an automatic oscillating weight with a column-wheel chronograph module, visible through the sapphire caseback.
  • 44 mm diameter: at the larger end of the Offshore chronograph range, the case size reinforces the model's bold, sport-luxury character.

Specifications

Brand
Audemars Piguet
Collection
Royal Oak Offshore
Reference
26400AU
Years of production
2015 – 2021
Case
44mm Forged carbon, black ceramic bezel
Case material
Forged carbon with black ceramic bezel
Case diameter
44 mm
Movement
Cal. 3126/3840
Crystal
Sapphire
Dial
Black Méga Tapisserie with subdials
Bezel
Octagonal black ceramic with 8 hexagonal screws
Bracelet / strap
Rubber strap
Water resistance
100 m
Power reserve
60 h
Complications
Chronograph, Date
Type
Chronograph
Worn as
Men's
Also known as
ロイヤルオークオフショア, オフショア, 离岸型, 皇家橡树离岸型, 离岸

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