The Reference

Examined to the movement.

The Audemars Piguet Royal Oak Chronograph ref. 26331ST.OO.1220ST.02 is a stainless steel 41mm model with a water resistance of 50 meters and a case thickness of 11mm. The reference houses the automatic caliber 2385, based on the Frédéric Piguet 1185, running at 21,600 vibrations per hour with 37 jewels and a 40-hour power reserve, and it is fitted with a sapphire crystal and a closed caseback.

This example presents a black dial with a tapisserie pattern, applied hour markers, and three white chronograph counters set against the black surface, with a date window at the lower portion of the dial. It is fitted to an integrated stainless steel bracelet secured by a folding clasp in stainless steel. Excellent condition, complete with full set including box, papers, warranty card, instructions for use booklet, and international sales warranty booklet.

Shipping

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Discreet, secure packing

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Collect in Jersey City

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Trading

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Examined & documented

Authenticated by our watchmakers and photographed as a full set.

Paid within 24 hours

Paid within 24 hours of inspection.

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In our clients’ words

Reviews

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4.846 verified reviews

Bought a watch for my wife. Mak was super helpful, informative and very easy to work with. I would recommend him to anyone looking. Delivered in a timely manner, very professional, even after receiving product was very helpful with questions and also followed up. Best experience I’ve had buying jewelry.

Abbas DastgirOct 31, 2026via Google

I can't tell you how happy I am with Michael and the team at Palazzo Watches. I've been looking for a specific, very rare AP for a long time. Michael found one and worked with me every step of the way to get it into my hands. He was incredibly professional and accommodated every request and need I had. 10/10, will definitely be back for more.

The Watch MisterAug 5, 2026via Google

Fantastic experience from start to finish! Offer honest opinions and recommendations because they truly want you to find the right watch, not just make a sale. The office has an amazing view! Highly recommend for anyone looking for a watch and a first-class experience.

John QuickAug 2, 2026via Google

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Examined to the movement.

Shipping

Trading

Reviews

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