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 ROYAL OAK STEEL 15450ST BLUE DIAL 37MM BOXES PAPERS
A 37mm Audemars Piguet Royal Oak Self Winding in stainless steel with a blue dial, purchased from an Audemars Piguet Boutique in 2018.
- Condition: Excellent Condition
- Bracelet size range: up to 6.75 inches wrist
- Package type: Complete Packages/Set (double boxes)
- Papers included: Yes

2005 Audemars Piguet Royal Oak 15300ST White Dial - Box and Papers
The Royal Oak, designed with a 39mm case size that is often worn slightly larger than traditional round watches. The white and steel case provides clean aesthetics, and the integrated bracelet has no slack.
- Condition: Very sharp
- Case Size: 39mm
- Bracelet Type: Integrated
- Wrist Fit: up to 7.5 inch

Audemars PIGUET ROYAL OAK 15510 STAINLESS STEEL BLUE NUIT DIAL 2023 FULL SET
A 2023 41mm Audemars Piguet Royal Oak self-winding stainless steel watch with a Bleu Nuit, Nuage 50 dial.
- Condition: Excellent, Unpolished Condition
- Diameter: 41mm
- Material: Stainless Steel
UNPOLISHED CASE MINT 2014 Audemars Piguet 15400ST Royal Oak 41mm with Box & Paper
A 2014 Audemars Piguet Royal Oak 41mm watch in excellent condition, featuring a stainless steel case and black dial.
- Condition: Excellent
- Case size: 41mm diameter
- Wrist size: 7 1/2 inches

Audemars Piguet Royal Oak Chronograph White Steel FULL SET MINT 26300ST
The Audemars Piguet Royal Oak Chronograph features a white Grande Tapisserie dial with three subdials, protected by a glare-proof sapphire crystal. It has an elegant stainless steel case with brushed and polished finishes and an iconic octagonal bezel secured with eight hexagonal screws.
- Condition: Mint
- Case size: 41mm diameter
- Materials: Stainless Steel
- Water resistance: 50m depth rating

Audemars Piguet Royal Oak Offshore Ref. 26405CE
The Audemars Piguet Royal Oak Offshore Ref. 26405CE features a 44mm black ceramic and titanium case, making it a unique addition to any collection.
- Case material: black ceramic and titanium
- Size: 44mm
Audemars Piguet Royal Oak Chronograph 26315ST Silver Dial with Box and Papers
This is an Audemars Piguet Royal Oak Chronograph with a silver dial, stainless steel case and bracelet. The watch features a 38mm case size and has been well-maintained showing only light wear from use.
- Condition: Excellent
- Case Size: 38mm
- Bracelet Length: 19 links
- Wrist Size Fit: up to 7 inches
Audemars Piguet Royal Oak 15450ST White Dial with Box and Papers
This Audemars Piguet Royal Oak 15450ST features a sharp 37mm unpolished case, stainless bezel, and silver grand tapisserie dial with matching original factory hands.
- Condition: Excellent
- Case diameter: 37mm
- Bracelet length: up to 17.5cm / 6.88"
- Box and papers included: yes
Audemars Piguet Royal Oak Double Balance Wheel Openworked 2024 15407ST 41mm
The Audemars Piguet Royal Oak Double Balance Wheel Openworked is a new, automatic men's watch featuring a steel case with a diameter of 41mm and water resistance up to 5 ATM.
- Condition: New
- Case material: Steel
- Bracelet material: Steel
- Case diameter: 41mm