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.

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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

[US] Audemars Piguet Royal Oak Offshore Diver Steel Green Dial 42mm - Full Set AP 15720ST 2023

Audemars Piguet - 15720ST

Posted at

Nov 7, 2025, 8:58 AM

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[US] Audemars Piguet Royal Oak Offshore Diver Steel Green Dial 42mm - Full Set AP 15720ST 2023

Audemars Piguet - 15720ST

Posted at

Nov 7, 2025, 8:57 AM

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[US] Audemars Piguet Royal Oak Selfwinding 37mm Silver Dial - AP 15550SR Complete Set 2023

Audemars Piguet - AP 15550SR

Posted at

Nov 7, 2025, 8:52 AM

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[US] Audemars Piguet Royal Oak Perpetual Calendar 41mm Blue Dial - AP 26574ST

Audemars Piguet - 26574ST

Dial color: blue

Posted at

Nov 7, 2025, 8:35 AM

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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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