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Audemars Piguet Royal Oak Offshore Chronograph 44 Titanium — 26400IO

Audemars Piguet

Royal Oak Offshore Chronograph 44 Titanium

26400IO

Titanium muscle and ceramic refinement in the Offshore's boldest format.

Estimated market value
$27,150
Confidence: High

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Overview

The Audemars Piguet Royal Oak Offshore Chronograph reference 26400IO is a 44 mm titanium-cased iteration of the iconic Offshore line, distinguished by its ceramic bezel and Méga Tapisserie dial rendered in slate grey and camouflage tones. Powering the watch is Calibre 3126/3840, AP's robust integrated chronograph movement combining an automatic base with a column-wheel chronograph module. The result is a sports chronograph that balances industrial material choices with the Offshore's signature architectural boldness.

History

The Royal Oak Offshore was conceived in the early 1990s as a deliberately oversized, more aggressive counterpart to Gerald Genta's original Royal Oak, and the 44 mm case size became a defining expression of that philosophy. Reference 26400IO entered the collection in 2016, pairing titanium — prized for its low weight and high strength — with a ceramic bezel for enhanced scratch resistance. The slate grey and camouflage dial variants gave the reference a tactical, almost military character that resonated strongly with collectors drawn to the Offshore's more assertive aesthetic. Production of this reference concluded around 2021, leaving it as a well-regarded chapter in the broader 26400 family.

Notable points

  • 44 mm grade-2 titanium case offers a notably lighter wearing experience than comparable steel or gold Offshore references.
  • Ceramic bezel provides superior scratch and abrasion resistance compared to the traditional AP-engraved metal bezels found on earlier Offshore models.
  • Méga Tapisserie dial — a finer, denser variant of the classic Grande Tapisserie pattern — is presented in slate grey and camouflage colourways, lending the piece a distinctly tactical character.
  • Calibre 3126/3840 is a column-wheel chronograph movement with an integrated architecture, offering a 60-hour power reserve.
  • The 26400IO reference sits within the broader 26400 family, which explored a range of materials and dial treatments across its production run.

Specifications

Brand
Audemars Piguet
Collection
Royal Oak Offshore
Reference
26400IO
Years of production
2016 – 2021
Case
44mm Titanium, ceramic bezel
Case material
Titanium with ceramic bezel
Case diameter
44 mm
Movement
Cal. 3126/3840
Crystal
Sapphire
Dial
Méga Tapisserie with subdials (slate grey, camo)
Bezel
Octagonal 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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