Audemars Piguet
Royal Oak Offshore Chronograph 42 (prior gen)
26170ST
The Offshore's defining generation — 42 mm of Méga Tapisserie authority.
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Overview
The Audemars Piguet Royal Oak Offshore Chronograph reference 26170ST represents a pivotal chapter in the Offshore lineage, housing a 42 mm stainless steel case that balances sporting presence with refined finishing. Its Calibre 2326/2840 movement delivers integrated chronograph functionality in a form that remained central to the collection for nearly a decade. Dial variants — Safari, Navy, and Elephant — gave collectors meaningful choice within a coherent design language.
History
Introduced in 2006 and produced through approximately 2014, the 26170ST occupied the core of the Royal Oak Offshore Chronograph range during one of the line's most commercially and culturally significant periods. The reference succeeded earlier 42 mm Offshore references and helped cement the model's identity as a serious sport-luxury chronograph rather than a novelty departure from the original Royal Oak. Its relatively long production run made it one of the more attainable entry points into the Offshore family on the secondary market, and the three named dial colorways have since developed distinct collector followings.
Notable points
- 42 mm stainless steel case retains the signature octagonal bezel secured by eight hexagonal screws, a hallmark of the Royal Oak Offshore family.
- Calibre 2326/2840 is a column-wheel integrated chronograph movement, offering a column-wheel control mechanism prized for its tactile precision.
- The Méga Tapisserie dial pattern — a bolder, larger-scale version of the classic Petite Tapisserie — is a defining visual signature of the Offshore line.
- Three named dial variants — Safari (khaki/brown tones), Navy (blue tones), and Elephant (grey tones) — each pair with coordinating rubber straps and subdial accents.
- Produced across roughly eight years, the 26170ST is considered a transitional reference bridging the early Offshore era and the subsequent generation of the 42 mm Chronograph.
Specifications
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