Audemars Piguet Royal Oak Offshore Selfwinding Chronograph Steel — Mega Tapisserie Blue Ceramic Bezel | Ref. 26400SO.OO.A502CA.01

Introduced during the 2014–2021 production era, reference 26400SO represents the Royal Oak Offshore Chronograph in its most practically accomplished configuration: a 44 mm stainless steel case paired with a ceramic bezel, delivering the scratch resistance and chromatic stability of advanced ceramic alongside the structural rigidity of steel. The octagonal case geometry — a proportionally enlarged evolution of Genta's original Royal Oak bezel — is executed with the alternating brushed and polished surfaces that define AP's finishing standards at this tier.

Calibre 4401 drives the chronograph function with a column-wheel mechanism and lateral clutch, offering approximately 70 hours of power reserve — a significant advance over earlier Offshore calibres. The flyback chronograph functionality allows instantaneous reset and restart of the stopwatch function from a single pusher, an operationally elegant solution for serious timing applications. The transparent caseback, secured with eight screws echoing the bezel's own architecture, frames the movement's côtes de Genève finishing and chamfered bridges in full view.

The blue Mega Tapisserie dial — the Offshore's signature bold guilloché in the most electric of colours — presents the chronograph layout with characteristic clarity: large Arabic numerals, prominent subdials, and the inner bezel scale all calibrated for immediate readability under pressure. A rubber strap in coordinating tone connects via a pin buckle, maintaining the sports-watch brief that the Offshore has upheld since its 1993 debut. Produced for the Men's sports watch segment, this reference demonstrates that the Royal Oak Offshore Chronograph in steel and ceramic remains an enduring benchmark of the category.