Skip to content

Audemars Piguet

Audemars Piguet Royal Oak Offshore Chronograph 48 Arnold Schwarzenegger The Legacy 26378IO.OO.A001KE.01

The Audemars Piguet Royal Oak Offshore Chronograph 48 Arnold Schwarzenegger The Legacy (reference 26378IO.OO.A001KE.01) is a 48 mm Black ceramic / titanium / rose gold watch with a black dial. It runs on the automatic caliber 2326/2840. It was introduced in 2011.

Specifications

Case

Reference
26378IO.OO.A001KE.01
Collection
Royal Oak Offshore
Case size
48 mm
Case material
Black ceramic / titanium / rose gold

Dial and bezel

Dial
Black

Movement

Movement
Automatic
Caliber
2326/2840
Functions
Chronograph, Date, Small seconds

Production

Production
2011 – today (limited)
Limited edition
1,500 pieces

Dial versions

This reference was made with these dials and finishes.

  • 26378IO.OO.A001KE.01 Black

    Rose gold sports-jersey style Arabic numerals

How it compares within the Royal Oak Offshore family

Side by side with other references in the same collection, from the catalog.

ReferenceSizeMaterialDialCaliberYears
26378IO.OO.A001KE.01 (This watch)48 mmBlack ceramic / titanium / rose goldBlack2326/28402011–
15720ST.OO.A403CA.0142 mmStainless steelAbyssal blue43082026–
26238CD.OO.1300CD.0142 mmCeramic / titaniumBlue44042025–
26238ST.OO.A001VE.0142 mmStainless steelSilver44042026–
26238ST.OO.A001VE.0242 mmStainless steelBlack44042026–
26238TI.OO.A001VE.0142 mmTitaniumGrey44042026–
26420CD.OO.A029VE.0143 mmTitanium / blue ceramicBeige44012026–
26420IO.OO.A402CA.0143 mmTitanium / black ceramicGreen44012026–
26622FO.OO.D700VE.0143 mmTitanium / ceramic / forged carbonRed29672026–

About the Royal Oak Offshore family

The Royal Oak Offshore was introduced in 1993, designed by Emmanuel Gueit as a larger, more robust version of the Royal Oak. The first chronograph, ref. 25721, had a 42 mm case and rubber-clad pushers and crown, and its size was unusual for the time.

The line went on to include the 42 mm and 44 mm chronographs, divers with an internal rotating bezel, such as ref. 15720, and many models in ceramic, titanium, forged carbon and gold. Recent chronographs use in-house calibers such as the 4401 flyback in the 43 mm ref. 26420. Dealers note case size, material and strap, and the condition of rubber parts, which often need replacing at service.

Quick answers

What size is the Audemars Piguet Royal Oak Offshore Chronograph 48 Arnold Schwarzenegger The Legacy 26378IO.OO.A001KE.01?
The Audemars Piguet Royal Oak Offshore Chronograph 48 Arnold Schwarzenegger The Legacy 26378IO.OO.A001KE.01 has a 48 mm case.
What movement does the Audemars Piguet Royal Oak Offshore Chronograph 48 Arnold Schwarzenegger The Legacy 26378IO.OO.A001KE.01 use?
It uses the automatic caliber 2326/2840.
Is the Audemars Piguet Royal Oak Offshore Chronograph 48 Arnold Schwarzenegger The Legacy 26378IO.OO.A001KE.01 still in production?
Limited.
When did the Audemars Piguet Royal Oak Offshore Chronograph 48 Arnold Schwarzenegger The Legacy 26378IO.OO.A001KE.01 come out?
It was introduced in 2011.
What is the Audemars Piguet Royal Oak Offshore Chronograph 48 Arnold Schwarzenegger The Legacy 26378IO.OO.A001KE.01 made of?
The case is Black ceramic / titanium / rose gold.

Catalog facts checked October 2026.