Audemars Piguet Royal Oak Royal Oak Perpetual Calendar Stainless Steel / Dark Blue
Reference 25820ST.OO.0944ST.04
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.
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

Audemars Piguet 4100BA Royal Oak III
This Audemars Piguet Royal Oak III is a 35mm unpolished 18k yellow gold watch with an unpolished bezel and bracelet. The dial features brass, grey petite tapisserie decoration and is complemented by 18k yellow gold hands, indices, and date wheel.
- Case diameter: 35mm
- Bezel material: 18k yellow gold
- Bracelet type: 477 H-link

BNIB Audemars PIGUET ROYAL OAK 15510ST STEEL BLUE NUIT DIAL 2025 COMPLETE SET
2025 Audemars Piguet Royal Oak with a 41mm stainless steel case and Bleu Nuit, Nuage 50 dial.
- Condition: Brand New In Box (BNIB)
- Material: stainless steel
- Diameter: 41mm
- Movement: self-winding
Audemars Piguet Royal Oak Offshore Chrono Black Themes 26170ST Complete&Serviced
The Audemars Piguet Royal Oak Offshore Chronograph “Black Themes” is a high-end timepiece with a 3126/3840 calibre produced from 2007+. It features a case of H23468-12112 and comes with a full set, including an OEM rubber strap w/ deployant buckle.
- Condition: Excellent condition, never polished
- Case size: 44mm diameter
- Movement: Calibre 3126/3840
- Year: 2011
2019 Audemars Piguet Royal Oak Perpetual Calendar 26579CE - Excellent Condition With
The Audemars Piguet Royal Oak Perpetual Calendar is a masterpiece of haute horology, crafted from black ceramic with a 41mm case and iconic octagonal bezel.
- Condition: Excellent Condition
- Case material: black ceramic
- Diameter: 41mm
2017 Audemars Piguet Royal Oak Chronograph 41mm Blue Dial 26331ST - Near Mint Conditi
The Audemars Piguet Royal Oak Chronograph showcases the brand's iconic design paired with exceptional craftsmanship, featuring a 41mm stainless steel case and blue Grande Tapisserie dial.
- Condition: Near Mint Condition
- Case diameter: 41mm
- Movement type: self-winding
- Water resistance: not specified

Audemars Piguet 26470ST.00.A028CR.01 Royal Oak Offshore
This Audemars Piguet Royal Oak Offshore comes with various accessories, including books and warranty cards.
- Condition: Very good condition
- Bracelets: black rubber, blue rubber, factory AP steel bracelet

Audemars Piguet Royal Oak 41mm Blue Dial 15500ST � 2021
This is an unpolished Audemars Piguet Royal Oak 41mm Blue Dial watch that features a sought-after blue dial. It comes with boxes, booklets, warranty card, and was originally sold in October 2021.
- Condition: Excellent, with a few faint hairlines and marks on the case, small marks and swirls on the bracelet, and light marks and hairlines on the brushed face.
- Case size: 41mm
- Diameter: 41mm

Audemars Piguet Royal Oak Offshore Chronograph BumbleBee 26176FO � Box & Papers
This Audemars Piguet Royal Oak Offshore Chronograph is a BumbleBee version with a carbon fiber case and black and yellow dial, featuring protective aftermarket stickers on the case.
- Condition: Excellent
- Material: Carbon fiber
- Diameter: 44mm
- Depth rating: 100m