Audemars Piguet Royal Oak Royal Oak Perpetual Calendar Openworked Yellow Gold

Reference 25829BA.OO.0944BA.01

Audemars Piguet Royal Oak Perpetual Calendar Openworked Yellow Gold

About this watch

The Audemars Piguet Royal Oak Perpetual Calendar Openworked Yellow Gold is a masterpiece of luxury watchmaking, boasting an exquisite design, intricate mechanics, and luxurious materials. This stunning timepiece tells a story through its openworked dial, showcasing the AP 2120 / 2802 caliber's reliability and precision. The perpetual calendar automatically accounts for varying month lengths and leap years, while the moonphase indicator adds celestial charm. Meticulous craftsmanship is evident in the manual finishing of bridges, including polished bevels and satin-brushed edges. The open case back offers a captivating view of the movement's inner workings, featuring an oscillating weight beautifully engraved and decorated. With its 39mm diameter, 9.30mm height, and water resistance of 20 meters, this watch strikes a perfect balance between substance and comfort. It's a statement of luxury and an heirloom that can be passed down through generations.

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Key Features

Audemars Piguet caliber AP 2120 / 2802 movement
Perpetual calendar with automatic date adjustment
Moonphase indicator with Physical Vapor Deposited metal on sapphire
Yellow gold case with polished and satin-brushed finishes
Openworked dial with Feuille hands
Water resistance of 20 meters
Sapphire crystal glass

Specifications

Brand

Audemars Piguet

Family

Royal Oak

Model

Royal Oak Perpetual Calendar Openworked Yellow Gold

Reference

25829BA.OO.0944BA.01

Movement

ap-2120-2802

Movement Features

Hours, Minutes
Date, Day, Leap Year, Month, Perpetual Calendar
Moonphase

Case

Yellow Gold 39mm

Dial Color

See-through

Crystal

Sapphire

Water Resistance

Current Listings

Audemars Piguet Royal Oak Offshore Ghost 26170TI 42mm Titanium Full Set - $25,495

Audemars Piguet - 26170TI.OO.1000TI.01 · $25,495

Up for sale is a Audemars Piguet Royal Oak Offshore Ghost Titanium, Reference: 26170TI.OO.1000TI.01, Year: 2014.

Condition: Excellent condition with minimal signs of wear.
Year: 2014
Box Condition: minimal wear
Warranty Book: true

Posted at

Dec 6, 2025, 9:20 AM

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2002 Audemars Piguet Royal Oak Ref. 14790ST | Blue Dial

Audemars Piguet - 14790ST · $27,000

This 2002 Audemars Piguet Royal Oak Ref. 14790ST features a crisp and excellent blue luminova dial with matching hands in a 36mm case.

Condition: Excellent
Case Size: 36mm
Bracelet Links: 20

Posted at

Dec 5, 2025, 4:46 PM

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Audemars Piguet Royal Oak Offshore "Vampire" Chronograph 42mm 26470ST

Audemars Piguet - 26470ST · $19,100

The Royal Oak Offshore 26470ST “Vampire” features a 42mm stainless steel case, deep-black Méga Tapisserie dial, and striking crimson accents. It has a classic Offshore DNA with a stealthy character defined by red chronograph hands, numerals, and stitching.

Condition: Excellent overall condition
Case size: 42mm diameter
Water resistance: 100m water resistance
Movement: Caliber 3126/3840 automatic chronograph with a 55-hour power reserve

Posted at

Dec 5, 2025, 2:33 PM

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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

A 44mm rose gold and black ceramic Audemars Piguet Royal Oak Offshore Selfwinding Chronograph with a smoked grey mega tapisserie dial, presented in excellent condition.

Condition: like new
Case size: 44mm diameter
Movement type: Mechanical (Automatic)
Power reserve: 50 hours

Posted at

Dec 5, 2025, 9:25 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 shines in yellow gold with a rich green dial, one of only 125 pieces ever made. The watch presents in like new condition and comes with its outer box, inner box, straps, booklet, and warranty card.

Condition: like new
Limited edition: one of only 125 pieces ever made
Case size: 41mm diameter
Case thickness: 11mm

Posted at

Dec 5, 2025, 9:04 AM

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2022 Audemars Piguet Royal Oak Chronograph Full Rose Gold “Brick” 42mm 26238OR.OO.2000OR.01 Full Set Excellent

Audemars Piguet - 26238OR.OO.2000OR.01 · $85,700

This is a 2022 Audemars Piguet Royal Oak Chronograph Full Rose Gold ‘Brick’ 42mm with an 18k pink gold case and matching gold bracelet, featuring a blue Méga Tapisserie dial.

Condition: Excellent
Case material: 18k pink gold
Bracelet material: matching gold
Dial color: blue Méga Tapisserie

Posted at

Dec 3, 2025, 2:03 PM

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AP Royal Oak Offshore 42mm The Beast 26237ST NIB

Audemars Piguet - 26237ST · $33,000

This Audemars Piguet Royal Oak Offshore is a 25th Anniversary re-issue of the first Offshore model from 1993. It features a 42mm case and comes with a complete set, including warranty card, double box, and travel cube.

Condition: New, Unworn (NIB)
Serial Number: J XXXXXX
Accessories: AP Warranty Card,Dark Green Wooden Box,Dark Green Card Board Box,AP Dark Black Leather Travel Cube
Shipping Restriction: Continental US shipping only

Posted at

Dec 2, 2025, 2:23 PM

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

Audemars Piguet - 26238CD.OO.1300CD.01 · $129,995

The Audemars Piguet Royal Oak Offshore Bleu Nuit Nuage 50 features a bold design, unmistakable Offshore character, and a 42mm case delivering classic power in a modern form. The watch includes an in-house flyback chronograph movement with precision and a 70-hour reserve.

Condition: Like new
Case size: 42mm
Case material: Blue ceramic with titanium caseback
Dial color: Blue ‘Méga Tapisserie’

Posted at

Dec 2, 2025, 9:23 AM

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