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

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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Audemars Piguet Royal Oak Offshore “Navy Panda” – Ref. 26170ST.OO.D305CR.01 – Complete Set – $18,000

Audemars Piguet - 26170ST.OO.D305CR.01 · $18,000

The seller is listing an Audemars Piguet Royal Oak Offshore 'Navy Panda' watch, which is a complete set.

Water Resistance Depth Rating: 150m

Posted at

Dec 1, 2025, 9:08 PM

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Audemars Piguet Royal Oak Offshore Blue Dial - 25721ST.OO.1000ST.09 The BEAST!

Audemars Piguet - 25721ST.OO.1000ST.09 · $21,950

This Audemars Piguet Royal Oak Offshore features a blue dial with white accents and a full bracelet, giving it a unique presence.

Includes: watch, outer box, inner box, extracts from Audemars Piguet

Posted at

Dec 1, 2025, 9:53 AM

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2016 Audemars Piguet Royal Oak 37mm 15450ST Stainless Steel White Dial - $30,500

Audemars Piguet - 15450ST.OO.1256ST.01 · $30,500

A 2016 Audemars Piguet Royal Oak in stainless steel with a white dial and grande tapisserie pattern.

Condition: Excellent overall condition
Box and papers: Yes
Warranty booklet: Yes
Dimensions: 7.0inch wrist size

Posted at

Dec 1, 2025, 9:26 AM

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

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

A Royal Oak Offshore Ghost Titanium watch, a titanium version of the iconic design.

Condition: Excellent condition with minimal signs of wear
Material: Titanium
Year: 2014
Size: 42mm diameter

Posted at

Nov 29, 2025, 1:56 PM

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NEW 2025 Audemars Piguet Royal Oak Chroograph 43mm 26420CE Ceramic Green Dial - $56,500

Audemars Piguet - 26420CE.OO.A063VE.01 · $56,500

The listing is for a brand new Audemars Piguet Royal Oak Offshore Selfwinding Chronograph with a ceramic green dial and adjustable black rubber strap. It comes with original double boxed, box and papers, international warranty card, and an additional green textile strap.

Condition: Brand New/Unworn
Size: 43mm diameter
Strap: Adjustable Black Rubber Strap, Additional Green Textile strap included

Posted at

Nov 28, 2025, 4:57 PM

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