Audemars Piguet Royal Oak Royal Oak Perpetual Calendar Openworked Stainless Steel

Reference 25829ST.OO.0944ST.01

About this watch

The Audemars Piguet Royal Oak Perpetual Calendar Openworked Stainless Steel is a masterpiece of horology, showcasing exquisite craftsmanship and iconic design. This remarkable watch combines artistry with functionality, featuring an openworked dial that reveals the intricate inner workings of its exceptional movement. The 39.00mm case diameter and 9.30mm height strike a perfect balance between presence and subtlety, making it suitable for both formal and casual occasions. Protected by sapphire glass, this watch is not only durable but also offers crystal-clear visibility. With a 40-hour power reserve and a frequency of 21,600 vibrations per hour, the AP caliber AP 2120 / 2802 movement is as reliable as it is beautiful. This timepiece is more than just a luxury item; it's an investment in a legacy that embodies precision, timeless style, and artistry.

Buy Now on Jomashop

This is an affiliate link

Market Price: $190,845

Key Features

40-hour power reserve
21,600 vibrations per hour frequency
Sapphire glass crystal protection
39mm case diameter
9.30mm height
Openworked dial design
Integrated stainless steel bracelet

Specifications

Brand

Audemars Piguet

Family

Royal Oak

Model

Royal Oak Perpetual Calendar Openworked Stainless Steel

Reference

25829ST.OO.0944ST.01

Movement

ap-2120-2802

Movement Features

Hours, Minutes
Date, Day, Leap Year, Month, Perpetual Calendar
Moonphase

Case

Stainless Steel 39mm

Dial Color

See-through

Crystal

Sapphire

Water Resistance

Current Listings

2014 Audemars Piguet Royal Oak Chronograph, Converted 26320OR — Like New Condition, Box & Papers

Audemars Piguet - 26320OR · $76,000

The Audemars Piguet Royal Oak Chronograph 26320OR is a converted configuration of the iconic watch, featuring an 18K rose gold case with an integrated bracelet design. The watch has a 41mm diameter and measures 53mm lug to lug. It's in excellent condition and comes complete with its original box and papers.

Condition: Like new condition
Materials: 18K rose gold
Bracelet type: Integrated
Diameter: 41mm

Posted at

Mar 11, 2026, 9:20 AM

Active

View listing on r/WatchExchange

Audemars Piguet Royal Oak 15202ST “Jumbo” Extra-Thin – Blue Dial

Audemars Piguet - 15202ST · $58,000

Up for sale is my Audemars Piguet Royal Oak 15202ST Jumbo Extra-Thin, one of the most iconic Royal Oak references and a cornerstone of the modern AP lineup. The blue Petite Tapisserie dial shows beautiful tonal variation depending on lighting and is one of the most sought-after configurations of the 15202.

Condition: Excellent overall condition
Year: 2007
Dial type: Blue Petite Tapisserie
Box papers included: Yes

Posted at

Mar 10, 2026, 4:37 PM

Active

View listing on r/WatchExchange

2022 Audemars Piguet Royal Oak 16202BA Jumbo Extra-Thin 50th Anniversary - Complete Set

Audemars Piguet - 16202BA · $129,950

A 2022 Audemars Piguet Royal Oak 50th Anniversary model, complete with all original accessories. The watch features a smoked yellow Petit Tapisserie dial and an integrated Royal Oak bracelet.

Condition: Light signs of use, some light scratches on the bracelet
Bracelet Length: fits up to 7.5 inches
Box Contents: Outer box, inner box, booklet sleeve, warranty booklet, international warranty card, instruction booklet, certificate of origin

Posted at

Mar 10, 2026, 1:02 PM

Active

View listing on r/WatchExchange

Audemars Piguet Royal Oak Offshore Bleu Nuit Nuage 50 26238CD.OO.1300CD.01 Complete Set

Audemars Piguet - 26238CD.OO.1300CD.01 · $120,995

This Audemars Piguet Royal Oak Offshore Bleu Nuit Nuage 50 features a bold design with an unmistakable Offshore character, powered by the in-house flyback chronograph movement with a 70-hour reserve.

Condition: like new
Case size: 42 mm
Case material: Blue ceramic with titanium caseback
Movement: Calibre 4404 mechanical automatic movement

Posted at

Mar 10, 2026, 8:51 AM

Active

View listing on r/WatchExchange

[US] Audemars Piguet Royal Oak Rose Gold Black Dial 39mm - AP 15300OR - $36,500

Audemars Piguet - 15300OR · $36,500

Posted at

Mar 9, 2026, 2:45 PM

Active

View listing on r/WatchExchange

[US] Audemars Piguet Royal Oak 41mm AP 15400OR Rose Gold White Silver Dial - Full Set - $38,750

Audemars Piguet - AP 15400OR · $38,750

This Audemars Piguet Royal Oak is a 41mm model featuring a rose gold case with a white and silver dial.

Set: full set

Posted at

Mar 9, 2026, 2:33 PM

Active

View listing on r/WatchExchange

Audemars Piguet Royal Oak Offshore Selfwinding Chronograph Ceramic Rose Gold Grey Dial 44mm Box & Papers 26405NR.OO.A002CA.01

Audemars Piguet - 26405NR.OO.A002CA.01 · $42,495

This watch is a 44mm rose gold and black ceramic masterpiece from AP, featuring a smoked grey dial.

Condition: like new
Case size: 44mm
Movement caliber: 3126/3840
Power reserve: 50 hours

Posted at

Mar 9, 2026, 8:43 AM

Active

View listing on r/WatchExchange

Audemars Piguet Royal Oak Chronograph Yellow Gold Green Dial 41mm 26331BA.OO.1220BA.02

Audemars Piguet - 26331BA.OO.1220BA.02 · $195,000

A rare, highly sought after Audemars Piguet Royal Oak Chronograph in yellow gold with a rich green dial and a 41mm case.

Condition: like new
Production Year: 2021
Case Size: 41mm diameter
Case Thickness: 11mm

Posted at

Mar 9, 2026, 8:40 AM

Active

View listing on r/WatchExchange

Audemars Piguet Royal Oak Offshore “Volcano” 26170ST

Audemars Piguet - 26170ST · $18,600

This Audemars Piguet Royal Oak Offshore 'Volcano' is a stunning timepiece with a clean case, lugs, and crystal. It comes with two original AP straps, including the iconic horned back caiman strap.

Condition: Beautiful condition
Case condition: very clean
Crystal condition: has a microscopic flea bite
Straps included: 2 x OEM AP straps

Posted at

Mar 8, 2026, 4:22 PM

Active

View listing on r/WatchExchange