AP 26240ST Royal Oak

The Audemars Piguet Royal Oak 26240ST is the 41 mm stainless steel generation of the Royal Oak Chronograph and time-and-date, representing the reference family that Audemars Piguet introduced to celebrate the Royal Oak's 50th anniversary and carry the iconic octagonal bezel design into a new era. Across the 26240ST collection, buyers will find both the celebrated chronograph variants bearing the "50th Anniversary" designation and clean integrated-bracelet time-and-date configurations, all sharing the signature brushed and polished stainless steel case and integrated bracelet construction that defines the Royal Oak silhouette. Dial options within this reference span Royal Oak blue, silver, green, khaki green, and black, giving collectors a meaningful range of colorways in a single reference family. Bizak and Co. sources authenticated 26240ST examples, new and pre-owned, to order.

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About the Audemars Piguet Royal Oak 26240ST

The Royal Oak debuted in 1972 as Gerald Genta's radical vision of a luxury sports watch in stainless steel, defined by its octagonal bezel secured with eight H-shaped screws, "Grande Tapisserie" dial pattern, and integrated bracelet. The 26240ST reference brought the Royal Oak to 41 mm, a case diameter that positions the watch as the larger counterpart to the classic 39 mm line, appealing to collectors who want a more contemporary wrist presence without abandoning the hallmark architecture. The "50th Anniversary" chronograph variants within this reference are particularly significant, produced to mark half a century of the Royal Oak and featuring commemorative detailing alongside the flyback-capable chronograph complication. Together, the 26240ST references represent one of the most actively traded Royal Oak families on the pre-owned and new market today.

What to Look For

When shopping the 26240ST collection, pay close attention to the specific sub-reference suffix, as the last two digits distinguish dial color and configuration, with variants such as .01 and .05 in blue, .06 in black, .07 and .03 in silver, and .08 in green for the time-and-date models, while .02 and .04 denote the chronograph editions in black and khaki green respectively. Condition of the integrated bracelet, presence of original box and papers, and whether a chronograph example carries its "50th Anniversary" documentation all have a meaningful impact on value in the secondary market.

Frequently Asked Questions

What is the case size of the AP Royal Oak 26240ST?

The 26240ST Royal Oak measures 41 mm in diameter and is crafted entirely in stainless steel, including its signature integrated bracelet. This places it among the larger Royal Oak stainless steel references and accounts for much of its strong collector demand.

What dial colors are available in the 26240ST reference family?

The 26240ST collection at Bizak and Co. includes Royal Oak blue, silver, green, khaki green, and black dials, spread across both the time-and-date and 50th Anniversary chronograph configurations. Each dial retains the classic Grande Tapisserie pattern that has defined the Royal Oak since 1972.

Are the 26240ST "50th Anniversary" chronograph models still available to buy?

Yes, Bizak and Co. sources 26240ST "50th Anniversary" chronograph examples to order, including the black dial 26240ST.OO.1320ST.02 and the khaki green dial 26240ST.OO.1320ST.04, in both new and pre-owned condition. These commemorative references are among the most sought-after in the 26240ST family and tend to command a premium over standard time-and-date variants.

Browse also: Audemars Piguet collection.

Buy, trade, or sell. Contact Bizak & Co. for pricing and availability on any reference in this collection.