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 42mm Chronograph Vampire Box & Strap 26470ST

Audemars Piguet - 26470ST · $19,950

The Audemars Piguet Royal Oak Offshore Chronograph 'Vampire' ref. 26470ST is a highly sought-after model with a bold design and 42mm size.

Condition: Good overall condition with minimal visible scratches
Case size: 42mm
Movement type: Automatic
Crystal material: Sapphire

Posted at

Apr 11, 2026, 1:40 AM

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Audemars Piguet Royal Oak Chrono Black 26240st, New 2026 Full Kit $62.5k

Audemars Piguet - 26240ST · $62,500

The watch being listed is an Audemars Piguet Royal Oak Chrono Black, a high-end luxury timepiece with a black dial. It features a chronograph function and comes with a full kit, including the box, warranty, and manuals.

Condition: Brand New
Country of origin: Switzerland
Shipping from: Singapore

Posted at

Apr 10, 2026, 12:56 PM

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Audemars Piguet Lady Royal Oak Quartz – BOX & PAPERS – 67651ST

Audemars Piguet - 67651ST.ZZ.1261ST.01 · $39,000

The Lady Royal Oak Quartz features a silver dial, 40 diamond bezel, and a stainless steel case diameter of 33mm.

Condition: Excellent condition, little to no visible wear
Movement: Cal 2713 Quartz
Case material: Stainless steel with 40 brilliant-cut diamonds, ~0.71 carats on the bezel
Case diameter: 33-millimeter

Posted at

Apr 10, 2026, 12:05 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 · $120,995

This Audemars Piguet Royal Oak Offshore Bleu Nuit Nuage 50 is a brand-new 2025 release with an in-house flyback chronograph movement, precision, and a 70-hour reserve. The watch features a bold design, unmistakable Offshore character, and serious presence.

Condition: Like new
Case size: 42mm
Case thickness: 15.3mm
Water resistance: 100m (10 ATM)

Posted at

Apr 9, 2026, 8:32 AM

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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 · $42,495

This Audemars Piguet Royal Oak Offshore Selfwinding Chronograph features a 44mm rose gold and black ceramic case, smoked grey dial with Mega Tapisserie pattern, and comes with its original box, papers, and warranty card.

Condition: like new condition
Case size: 44mm diameter
Case material: ceramic
Bezel material: 18k rose gold

Posted at

Apr 9, 2026, 8:31 AM

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Audemars Piguet Royal Oak Offshore 42 Rose Gold / Grey / Alligator

Audemars Piguet - 26470OR.OO.A125CR.01 · $38,500

The Audemars Piguet Royal Oak Offshore 'Half Brick' features a solid 18k rose gold case with a rhodium dial and silver subdials, providing substantial luxury feel with daily wear comfort.

Condition: Phenomenal shape, running great
Case size: 42mm diameter
Movement: 3126/3840 Automatic

Posted at

Apr 8, 2026, 6:06 PM

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2015 Audemars Piguet Royal Oak Offshore Diver Black - 15710ST.OO.A002CA.01 - Full Set Extra Straps

Audemars Piguet - 15710ST.OO.A002CA.01 · $17,999

The listing features a 2015 Audemars Piguet Royal Oak Offshore Diver Black in excellent daily wear, with a mega tapisserie large hobnail dial and black lacquered gloss. It comes mounted on a black rubber vulcanized strap with an integrated look, as well as two extra high-quality Vagenari straps.

Condition: Excellent pre-owned condition
Case Size: 42mm diameter
Movement: Calibre 3120 with 60 hour power reserve
Water Resistance: 300m depth rating

Posted at

Apr 8, 2026, 5:48 PM

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2023 Audemars Piguet Royal Oak Offshore Diver, Blue Dial 15720ST — Like New Condition, Box & Papers

Audemars Piguet - 15720ST · $25,000

The Audemars Piguet Royal Oak Offshore Diver is a bold, modern dive watch that combines the rugged Offshore aesthetic with refined finishing. It features a vibrant blue dial with an inner rotating dive bezel and an in-house automatic movement for reliable performance.

Condition: Like new condition
Case size: 42mm diameter
Movement type: In-house automatic movement

Posted at

Apr 8, 2026, 9:33 AM

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