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

Reference 25820ST.OO.0944ST.05

Audemars Piguet Royal Oak Perpetual Calendar Stainless Steel / Blue

About this watch

The Audemars Piguet Royal Oak Perpetual Calendar is a masterpiece of horology, blending tradition with modernity in a stunning stainless steel case paired with a striking blue dial. The 39 mm diameter strikes a perfect balance between boldness and elegance, while the tapisserie pattern on the dial catches the light beautifully. Crafted from high-quality stainless steel, this watch not only looks fantastic but is also built to last. The sapphire crystal glass adds to its robustness, providing scratch resistance and clarity. At the core lies the Audemars Piguet caliber AP 2120 / 2802, an engineering marvel designed for exceptional user experience. With an automatic mechanism, it harnesses energy from wrist movements, boasting a power reserve of approximately 40 hours. One standout feature is its perpetual calendar, adjusting for months of varying lengths and leap years, while the moonphase complication adds celestial beauty. The integrated bracelet is both visually appealing and ergonomic, ensuring a snug fit on the wrist. With manual finishing of the movement and stringent quality control, each piece is a work of art. This exclusivity makes it a coveted piece among collectors, elevating your watch game to new heights.

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MSRP: $40,500

Market Price: $109,775

Key Features

Audemars Piguet caliber AP 2120 / 2802 automatic movement
Perpetual calendar with leap year and month adjustment
Moonphase complication with Physical Vapor Deposited (PVD) metal on sapphire
Sapphire crystal glass for scratch resistance and clarity
39 mm stainless steel case diameter
9.30 mm height for comfortable wear
20 meters water resistance for everyday use

Specifications

Brand

Audemars Piguet

Family

Royal Oak

Model

Royal Oak Perpetual Calendar Stainless Steel / Blue

Reference

25820ST.OO.0944ST.05

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

Current Listings

Audemars Piguet Royal Oak Offshore "SAFARI" w/ 18-Month Warranty & 3 Straps

Audemars Piguet - 26020ST.OO.D091CR.01 · $17,895

This Audemars Piguet Royal Oak Offshore 'Safari' features a cream-colored dial with a 'Méga Tapisserie' pattern and luminous hands, powered by AP's in-house self-winding mechanical movement.

Condition: Excellent with minor blemish on the bezel
Movement type: In-house self-winding mechanical
Power reserve: 40 hours
Warranty: 18-month warranty from Horologix

Posted at

Nov 6, 2025, 11:11 AM

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

Audemars Piguet - 26331BA.OO.1220BA.02 · $199,000

This stunning Royal Oak Chronograph has a yellow gold case with a rich green dial, one of only 125 pieces ever made.

Condition: like new
Movement type: Mechanical (Automatic)
Jewels: 37
Power reserve hours: 40

Posted at

Nov 6, 2025, 8:44 AM

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Audemars Piguet Royal Oak Offshore 26400SO Panda Dial 44mm 2016 Full Set

Audemars Piguet - 26400SO.OO.A002CA.01 | 26400SO · $20,990

This is an excellent example of a very wearable and versatile 44mm Offshore model with a stainless steel case, automatic chronograph movement, and 50 hour power reserve.

Condition: Excellent, near mint pre-owned condition
Case size: 44mm diameter
Movement: Calibre 3126/3840
Power reserve: 50 hour power reserve

Posted at

Nov 5, 2025, 12:57 PM

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Audemars Piguet Royal Oak 15500ST Black Dial 41mm Steel 2020 Full Set

Audemars Piguet - 15500ST.OO.1220ST.03 | 15500ST · $38,450

The Audemars Piguet Royal Oak 15500ST features a classic 41mm stainless steel case with a black Grande Tapisserie dial, making it suitable for various occasions.

Condition: Excellent pre-owned condition with very faint wear on the case, bezel, and bracelet consistent with careful use
Case material: stainless steel
Diameter: 41mm
Movement type: automatic

Posted at

Nov 5, 2025, 12:34 PM

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2017 Audemars Piguet Royal Oak 41 White 15400ST — Like New Condition, Inner Box & Papers

Audemars Piguet - 15400ST · $33,000

The Audemars Piguet Royal Oak 41mm White Dial 15400ST embodies the essence of modern luxury with its distinctive design and impeccable craftsmanship, featuring a signature white dial, applied hour markers, and integrated stainless steel bracelet.

Condition: Like new condition
Diameter: 41mm
Lug to lug length: 51mm
Thickness: 9.8mm

Posted at

Nov 5, 2025, 8:01 AM

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2024 Audemars Piguet Royal Oak Diamond Bezel 15551ST — Like New Condition, Box & Papers

Audemars Piguet - 15551ST · $47,000

The Audemars Piguet Royal Oak Diamond Bezel combines the collection’s signature sporty elegance with a refined touch of luxury, featuring an iconic octagonal bezel set with brilliant-cut diamonds and a "Grande Tapisserie" silver-toned dial.

Condition: Like new condition
Dimensions: 37mm diameter, 45mm lug to lug, and 9.1mm thick
Includes: Original box & papers
Shipping: Free shipping to US addresses (international at additional cost)

Posted at

Nov 3, 2025, 8:02 AM

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Seiko AP Royal Oak MOD

Seiko - AP Royal Oak MOD · $215

This is a modified version of the Seiko AP Royal Oak, which is being sold as part of a sale.

Condition: Brand new
Payment methods: Venmo, PayPal

Posted at

Nov 1, 2025, 6:06 PM

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Audemars Piguet Royal Oak Offshore Chronograph "Vampire" - 42mm - Watch and Box

Audemars Piguet - Royal Oak Offshore Chronograph · $19,498

This Audemars Piguet Royal Oak Offshore Chronograph, known as the “Vampire” has a black dial and blood red accents. The watch is available in 42mm.

Condition: Great pre-owned condition with very little faint signs of wear
Case size: 42mm diameter
Materials included: Watch, inner box, outer box, branded polish cloth

Posted at

Oct 31, 2025, 3:10 PM

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2023 Audemars Piguet Royal Oak Chronograph 41mm 50th Anniversary 26240ST.OO.1320ST.07 Full Set Mint

Audemars Piguet - 26240ST.OO.1320ST.07 · $51,000

The Audemars Piguet Royal Oak Chronograph features a stainless steel case, silver/white 'Grande Tapisserie' dial and integrated bracelet, powered by the in-house Caliber 4401 with flyback chronograph functionality, 70-hour power reserve and a sapphire caseback.

Condition: Excellent
Case size: 41mm
Water resistance: unknown
Movement: in-house Caliber 4401

Posted at

Oct 31, 2025, 10:46 AM

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