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The Encyclopedia of Horology

Wristwatch · Chronograph

Audemars Piguet Royal Oak Offshore Chronograph Ref. 26231ST.ZZ.D002CA.01

Partially verified

This Audemars Piguet Royal Oak Offshore Chronograph, reference 26231ST.ZZ.D002CA.01, is a stainless steel mid-sized chronograph wristwatch dating to circa 2020. The 37 mm case features an octagonal bezel set with 32 brilliant-cut diamonds secured by hexagonal screws. It houses a black tapisserie patterned dial equipped with luminous hour markers, three subsidiary chronograph counters, and a date window positioned between 4 and 5 o'clock. The watch is powered by the automatic calibre 2385 movement with 37 jewels, paired with an integrated black rubber strap and a stainless steel deployant clasp.

Front view of the Audemars Piguet Royal Oak Offshore Chronograph featuring diamond-set bezel and black tapisserie dial
Front view of the Audemars Piguet Royal Oak Offshore Chronograph featuring diamond-set bezel and black tapisserie dial — Phillips. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
www.phillips.com
Category
Wristwatch · Chronograph
Maker / attribution
Audemars Piguet
Reference
26231ST.ZZ.D002CA.01
Catalogue / lot identifier
8006
Source-reported date
Circa 2020
Source-reported place
Switzerland
Source-reported serial
J79968

Source-reported attribution and specifications are not independent authentication. A listing does not establish present ownership, current display, availability or permission to reproduce.

Object description

Case and External Construction

The Royal Oak Offshore reference 26231ST.ZZ.D002CA.01 features a 37 mm stainless steel case. The octagonal bezel is set with 32 brilliant-cut diamonds, stated to total just over 1 carat, and is secured by eight recessed hexagonal screws.

The watch is fitted with an integrated rubber strap and a stainless steel Audemars Piguet deployant clasp.

Evidence for this section
  • “Dimensions 37mm diameter”
  • “The bezel is adorned with 32 brilliant-cut diamonds, totaling just over 1 carat.”
  • “Octagonal stainless steel bezel set with diamonds and eight recessed hexagonal screws.”
  • “Rubber Clasp/Buckle Stainless steel Audemars Piguet deployant clasp”

Dial and Complications

The timepiece features a black dial decorated with a tapisserie pattern. It includes three chronograph sub-dials positioned at the 3, 6, and 9 o'clock positions.

A date aperture is located between the 4 and 5 o'clock positions.

Evidence for this section
  • “Black dial decorated with tapisserie waffle pattern and three sub-dials at 3, 6, and 9 o'clock.”
  • “Angled date aperture visible between the 4 and 5 o'clock positions.”

Mechanism and Provenance

The watch is powered by an automatic calibre 2385 movement with 37 jewels. The movement is identified by serial number AE7401. The watch is accompanied by an Audemars Piguet warranty card, instruction manual, product literature, fitted presentation box, and outer packaging.

The production year is catalogued as circa 2020.

Evidence for this section
  • “Calibre Automatic, cal. 2385, 37 jewels”
  • “Movement No AE7401”
  • “Year Circa 2020”
  • “Accompanied by Audemars Piguet warranty card, instruction manual, product literature, fitted presentation box and outer packaging.”

Open research questions

  • What is the specific internal condition of the movement, as visual inspection of the movement was not provided in the source?
  • Is there documented evidence of original factory-set diamond certification beyond the catalogue description?

Source evidence

Recorded claims and source quotations for Audemars Piguet Royal Oak Offshore Chronograph Ref. 26231ST.ZZ.D002CA.01
FieldSource-reported valueSource quotation
Reference Number26231ST.ZZ.D002CA.01“Reference No 26231ST.ZZ.D002CA.01”
Case NumberJ79968“Case No J79968”
Movement NumberAE7401“Movement No AE7401”
CalibreAutomatic, cal. 2385, 37 jewels“Calibre Automatic, cal. 2385, 37 jewels”
Dimensions37mm diameter“Dimensions 37mm diameter”
Bezel Gemsetting32 brilliant-cut diamonds“The bezel is adorned with 32 brilliant-cut diamonds, totaling just over 1 carat.”
Signed ComponentsCase, dial, movement and clasp“Signed Case, dial, movement and clasp signed”

Visible details

  • Black dial decorated with tapisserie waffle pattern and three sub-dials at 3, 6, and 9 o'clock.
  • Octagonal stainless steel bezel set with diamonds and eight recessed hexagonal screws.
  • Integrated black rubber strap attached with dual stainless steel plot links.
  • Angled date aperture visible between the 4 and 5 o'clock positions.

Research qualifications

  • Case back, clasp, movement, and accompanying accessories are not visible in the provided image.
  • Date of production is catalogued as circa 2020 rather than an exact year.

Photograph identity and source facts were screened before import; rights clearance remains pending.

Consulted source

Audemars Piguet Phillips Watches Online Auction: The Hong Kong Sessions, Spring 2026

Reviewed 2026-10-22 · Record 17cdccb9d5

Terms in this record

Glossary explanations for terms named in this object’s record.

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