Audemars Piguet Royal Oak Royal Oak Perpetual Calendar Stainless Steel / Dark Blue

Reference 25820ST.OO.0944ST.04

Audemars Piguet Royal Oak Perpetual Calendar Stainless Steel / Dark Blue

About this watch

The Audemars Piguet Royal Oak Perpetual Calendar 25820ST.OO.0944ST.04 is an exquisite timepiece that embodies elegance, innovation, and luxury. This masterpiece boasts a stunning dark blue dial, perfectly complemented by the stainless steel case. The iconic octagonal bezel and integrated bracelet add to its timeless appeal. With its extra-thin automatic movement, this watch features a plethora of complications, including a perpetual calendar that automatically adjusts for months with varying lengths and leap years. The moonphase complication is crafted with Physical Vapor Deposited (PVD) metal on sapphire, adding a touch of celestial elegance. The dial's intricate details, such as the stick and dot indexes and slender stick-style hands, make it easy to read in any light condition. The watch's water resistance of 20 meters makes it ideal for everyday wear. Whether you're at the office or attending a formal event, this watch adapts effortlessly to any environment. Its lightweight profile and smooth stainless steel make it a pleasure to wear.
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MSRP: $40,500
Market Price: $109,775

Key Features

  • Extra-thin automatic movement with perpetual calendar
  • Moonphase complication crafted with Physical Vapor Deposited (PVD) metal on sapphire
  • Iconic octagonal bezel and integrated bracelet design
  • Stainless steel case with dark blue dial and subtle texture
  • Water resistance of 20 meters for everyday wear
  • Lightweight profile and smooth stainless steel for comfortable wear

Specifications

Brand
Audemars Piguet
Family
Royal Oak
Model
Royal Oak Perpetual Calendar Stainless Steel / Dark Blue
Reference
25820ST.OO.0944ST.04
Movement
ap-2120-2802
Movement Features
  • Hours, Minutes
  • Date, Day, Leap Year, Month, Perpetual Calendar
  • Moonphase
Case
Stainless Steel 39mm
Dial Color
Blue
Crystal
Sapphire
Water Resistance
20

Current Listings

[WTS] Audemars Piguet Royal Oak Offshore 18K Rose Gold “Rhodium” 42MM - Ref 26470OR (LIKE NEW 2018 COMPLETE SET)

Audemars Piguet Royal Oak Offshore 18K Rose Gold “Rhodium” 42MM - Ref 26470OR (LIKE NEW 2018 COMPLETE SET)

Audemars Piguet - 26470OR · $33,700
A 42MM Audemars Piguet Royal Oak Offshore in 18K Rose Gold 'Rhodium' is being sold. The watch is in excellent condition and comes with its complete set.

  • Condition: Immaculate, unpolished condition; could pass as new with handling marks
  • Case size: 42mm
  • Materials: 18K Rose Gold
  • Year: 2018
Posted at
Jan 23, 2026, 4:43 PM
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[WTS] AP Royal Oak 38mm Chrono | 26315st | White x Blue Subdials | Complete

AP Royal Oak 38mm Chrono | 26315st | White x Blue Subdials | Complete

Audemars Piguet - 26315st · $44,500
The seller is listing an Audemars Piguet Royal Oak Chronograph in 38mm with a white dial and blue subdials.

  • Condition: Preowned in retail ready condition
  • Case Size: 38mm diameter
  • Crystal Condition: Clean crystal
Posted at
Jan 23, 2026, 1:23 PM
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[WTS] 2023 Audemars Piguet Royal Oak 41mm 15510ST Stainless Steel Blue Dial - $53,250

2023 Audemars Piguet Royal Oak 41mm 15510ST Stainless Steel Blue Dial - $53,250

Audemars Piguet - 15510ST.OO.1320ST.01 · $53,250
2023 Audemars Piguet Royal Oak 41mm stainless steel blue dial watch with original box, papers, and warranty.

  • Condition: Excellent overall condition
  • Box And Papers: Yes
  • Warranty: 5 year manufacturer warranty
  • Size Diameter: 41mm
Posted at
Jan 23, 2026, 1:07 PM
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[WTS] Audemars Piguet Royal Oak Extra Thin Jumbo – BOX & PAPERS – 15202ST

Audemars Piguet Royal Oak Extra Thin Jumbo – BOX & PAPERS – 15202ST

Audemars Piguet - 15202ST.OO.0944ST.02 · $55,000
The watch is a Royal Oak Extra Thin Jumbo with an ultra-thin design, sharp steel lines, and a recognizable integrated bracelet. The naturally aged blue dial adds character to the watch.

  • Condition: Great overall condition, minimal evident wear.
  • Case material: Stainless steel
  • Case diameter: 39mm
  • Bracelet length: 21 total links
Posted at
Jan 23, 2026, 9:04 AM
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[WTS] Audemars Piguet Royal Oak Offshore Selfwinding Chronograph Ceramic Rose Gold Grey Dial 44mm Box & Papers 26405NR.OO.A002CA.01

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 · $47,495
This 44mm rose gold and black ceramic Audemars Piguet Royal Oak Offshore Selfwinding Chronograph features a smoked grey Mega Tapisserie dial and comes with its outer box, inner wood box, booklets and warranty card.

  • Condition: like new
  • Case material: ceramic
  • Bezel material: 18k rose gold
  • Diameter: 44mm
Posted at
Jan 23, 2026, 8:57 AM
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[WTS] 2024 Audemars Piguet Royal Oak Chronograph 26240CE — Brand New Condition, Box & Papers

2024 Audemars Piguet Royal Oak Chronograph 26240CE — Brand New Condition, Box & Papers

Audemars Piguet - 26240CE · $115,000
The Audemars Piguet Royal Oak Chronograph showcases the iconic Royal Oak design in full black ceramic, featuring a Grande Tapisserie dial and in-house flyback chronograph movement.

  • Condition: Brand new condition
  • Case size: 41mm diameter
  • Dimensions: 51.4mm lug to lug, 12.4mm thick
Posted at
Jan 21, 2026, 8:02 AM
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[wts] Audemars Piguet Royal Oak Automatic 41mm Blue 15510ST.OO.1320ST.01 LNIB

Audemars Piguet Royal Oak Automatic 41mm Blue 15510ST.OO.1320ST.01 LNIB

Audemars Piguet - 15510ST.OO.1320ST.01 · $54,500
A pristine condition Audemars Piguet Royal Oak with a blue stainless steel dial, delivered with all original packaging and warranty.

  • Condition: Like new in box (LNIB)
  • Case size: 41mm
  • Water resistance: 30m
Posted at
Jan 20, 2026, 6:07 PM
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[WTS] Audemars Piguet Royal Oak Offshore Bleu Nuit Nuage 50 26238CD.OO.1300CD.01 Complete Set

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

Audemars Piguet - 26238CD.OO.1300CD.01 · $123,995
This Audemars Piguet Royal Oak Offshore Bleu Nuit Nuage 50 features a bold design, blue 'Méga Tapisserie' dial, and full ceramic build, making it a statement piece with classic power. The watch is powered by an in-house flyback chronograph movement with a 70-hour reserve.

  • Condition: like new
  • Case size: 42 mm diameter
  • Water resistance: 100 m (10 ATM)
  • Power reserve: 70 hours
Posted at
Jan 20, 2026, 8:05 AM
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[WTS] Audemars Piguet Royal Oak Offshore 26170ST.OO.D091CR.01

Audemars Piguet Royal Oak Offshore 26170ST.OO.D091CR.01

Audemars Piguet - 26170ST.OO.D091CR.01 · $18,699
A classic Royal Oak Offshore reference with a 42mm stainless steel case and iconic octagonal bezel. The watch features an automatic chronograph movement, date display at 3 o'clock, and comes complete with the original box and papers.

  • Condition: Excellent, light signs of careful wear
  • Case size: 42mm diameter
  • Movement type: Automatic chronograph
Posted at
Jan 17, 2026, 8:23 PM
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