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The Encyclopedia of Horology

Wristwatch · Perpetual calendar wristwatch

Audemars Piguet Ref. 26574OR.OO.1220OR.03 Royal Oak Perpetual Calendar

Partially verified

This Audemars Piguet Royal Oak Perpetual Calendar, reference 26574OR.OO.1220OR.03, is dated circa 2021 by the catalog. Housed in a 41 mm 18K pink gold case, the watch features an integrated 18K pink gold bracelet and double deployant clasp. The source reports it is powered by an automatic caliber 5134 movement with 38 jewels. The blue tapisserie dial incorporates subdials for day, date, month, and leap year, an astronomical moon phase display, and an outer periphery chapter ring indicating the weeks of the year.

Front view of the Audemars Piguet Royal Oak Perpetual Calendar in 18K pink gold with bracelet and blue dial
Front view of the Audemars Piguet Royal Oak Perpetual Calendar in 18K pink gold with bracelet and blue dial — Phillips. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
www.phillips.com
Category
Wristwatch · Perpetual calendar wristwatch
Maker / attribution
Audemars Piguet
Reference
26574OR.OO.1220OR.03
Catalogue / lot identifier
31
Source-reported date
Circa 2021
Country
Switzerland
Source-reported serial
WT8785G

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

Identity and Case Construction

Catalogued under reference 26574OR.OO.1220OR.03 and designated case number WT8785G, this Audemars Piguet Royal Oak Perpetual Calendar is dated circa 2021 by Phillips and noted as 'PROPERTY OF THE ORIGINAL OWNER'. The catalog records a 41mm diameter case constructed from 18K pink gold, paired with an integrated 18K pink gold bracelet.

Visual observation of the watch confirms an octagonal 18K pink gold bezel secured by eight visible hexagonal screws, alongside an integrated link bracelet in satin-brushed and polished pink gold. The source details state that the bracelet is stamped “1220” to the endlinks with a maximum length of 217mm and is closed with an 18K pink gold double deployant clasp.

Evidence for this section
  • “PROPERTY OF THE ORIGINAL OWNER”
  • “Circa 2021, Switzerland”
  • “41mm Diameter”
  • “18K pink gold Audemars Piguet bracelet stamped “1220” to the endlinks, max length 217mm”
  • “Octagonal 18K pink gold bezel secured by eight visible hexagonal screws.”
  • “Integrated link bracelet in satin-brushed and polished pink gold.”

Dial Display and Movement Details

Direct visual inspection shows a blue patterned tapisserie dial featuring four recessed subsidiary dials and an outer week chapter ring numbered to 52. The subdial layout accommodates indications for day, date, month, leap year, and an astronomical moon phase.

According to the auction catalog, the watch is powered by an automatic caliber 5134 movement with 38 jewels. The case, dial, movement, and clasp are stated to be signed, though internal movement components and case back markings are not visible in the provided front photograph.

Evidence for this section
  • “Blue patterned tapisserie dial with four recessed subsidiary dials and an outer week chapter ring numbered to 52.”
  • “Automatic, cal. 5134, 38 jewels”
  • “Case, dial, movement, and clasp signed.”

Source Documentation and Accessories

The catalog entry indicates that the lot is accompanied by an Audemars Piguet warranty card, product literature, a self-winding presentation box, an 18K pink gold pin adjustor, a wooden box, and outer packaging. The sale achieved a price of $139,700 against an estimate of $80,000–160,000.

None of the accompanying accessories, warranty papers, or boxes are shown in the primary catalog photo. Consequently, independent verification of movement condition, internal serial numbers, and physical documentation details remains unrecorded in this source.

Evidence for this section
  • “估價 $80,000–160,000 成交價 $139,700”
  • “Accompanied by, Audemars Piguet warranty card, product literature, self-winding presentation box, 18K pink gold pin adjustor, wooden box, and outer packaging.”

Open research questions

  • What specific purchase date, country code, and authorized retailer name are recorded on the accompanying Audemars Piguet warranty card?
  • Does direct examination of the case back and movement confirm the WT8785G case number and provide the specific caliber 5134 movement serial number?

Source evidence

Recorded claims and source quotations for Audemars Piguet Ref. 26574OR.OO.1220OR.03 Royal Oak Perpetual Calendar
FieldSource-reported valueSource quotation
Reference26574OR.OO.1220OR.03“26574OR.OO.1220OR.03”
Case NumberWT8785G“WT8785G”
MovementAutomatic, cal. 5134, 38 jewels“Automatic, cal. 5134, 38 jewels”
Case Material18K pink gold“18K pink gold”
Diameter41mm“41mm Diameter”
Bracelet StampingStamped “1220” to the endlinks“stamped “1220” to the endlinks”
Bracelet Maximum Length217 mm“max length 217mm”
Clasp Type18K pink gold Audemars Piguet double deployant clasp“18K pink gold Audemars Piguet double deployant clasp”
Auction Result$139,700 (Estimate: $80,000–160,000)“估價 $80,000–160,000 成交價 $139,700”

Visible details

  • Octagonal 18K pink gold bezel secured by eight visible hexagonal screws.
  • Blue patterned tapisserie dial with four recessed subsidiary dials and an outer week chapter ring numbered to 52.
  • Integrated link bracelet in satin-brushed and polished pink gold.

Research qualifications

  • Case back and internal caliber 5134 movement are not visible in the provided image.
  • Accessories referenced by the auction catalog (boxes, warranty card, pin adjustor) are not depicted.

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

Consulted source

Audemars Piguet Phillips Watches Online: The New York Sessions Spring 2026

Reviewed 2026-10-21 · Record 3c02e5b8ec

Terms in this record

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

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