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.

Reference details

Specifications

Brand: Audemars Piguet
Reference: 26331ST.OO.1220ST.02
Year: 2017
Movement: Automatic
Case size: 41mm
Case material: Steel
Dial: Black
Functions: Date | Chronograph
Condition: Excellent
Contents: Full Set

Delivery

Shipping

Every Palazzo watch ships fully insured and tracked — packed by hand in our Jersey City showroom and released only on your signature.

Insured & tracked

Fully insured worldwide, with a signature required on delivery.

Discreet, secure packing

Packed by hand in unbranded, tamper-evident packaging.

Collect in Jersey City

Or have it delivered, fully insured, to your door.

Sell or trade

Trading

Have a watch to put toward this one? Trade in any fine timepiece and we’ll apply its value directly to your purchase.

Free insured label

We send a prepaid, insured label to ship your trade safely.

Examined & documented

Authenticated by our watchmakers and photographed as a full set.

Paid within 24 hours

Paid within 24 hours of inspection.

Visit the Sell & Trade page ›

In our clients’ words

Reviews

Read all reviews ›

4.845 verified reviews

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

I found my go to place to purchase luxury watches!! Mak and Michael were very professional, transparent, helpful, genuine and kind to me. They made the process of buying my first Rolex very easy. All their watches are authenticated with paperwork and box provided. Mak and Michael were very knowledgeable about each watch and answered all my questions to the fullest extent. I would 100% recommend anybody who is looking for their first or next piece in their collection to come here and purchase a watch.

Moiz SyedAug 1, 2026via Google

From the collection

See our new arrivals first

The best pieces sell before they’re listed. Get first look in your inbox.