Audemars Piguet Royal Oak Royal Oak Perpetual Calendar Openworked Yellow Gold

Reference 25829BA.OO.0944BA.01

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
20

Current Listings

Audemars Piguet Royal Oak Perpetual Calendar Black Ceramic FULL SET 26579CE

Audemars Piguet Royal Oak Perpetual Calendar Black Ceramic FULL SET 26579CE

The watch features a slate grey dial with black subdials showing the day, date, month, and moon phase. It has a perpetual calendar that automatically adjusts for months of varying lengths and leap years.

  • Condition: Mint condition with little to no signs of wear
  • Material: Black ceramic case with a brushed finish and polished edges
  • Movement: Gold-toned rotor and intricate movement inside
  • Functions: Hours,Minutes,Seconds,Day,Date,Month,Year,Leap year,Moon phase
Posted at
Feb 21, 2025, 11:49 PM
Active
Audemars Piguet Royal Oak Offshore �Brick Beast� Blue Dial FULL SET MINT 26238OR

Audemars Piguet Royal Oak Offshore �Brick Beast� Blue Dial FULL SET MINT 26238OR

Audemars Piguet - 26238OR · $97,350
The Audemars Piguet Royal Oak Offshore Chronograph Blue Brick in Pink Gold features a deep blue Petite Tapisserie dial, pink gold-toned counters, and a brushed case with a transparent caseback. It presents itself with little to no signs of wear and comes as a full set.

  • Condition: Mint condition
  • Material: 18k pink gold
  • Case Size: unknown
  • Diameter: unknown
Posted at
Feb 21, 2025, 11:05 PM
Active
Audemars Piguet Royal Oak Offshore Diver 42mm Japan Limited Edition of 500 Rose

Audemars Piguet Royal Oak Offshore Diver 42mm Japan Limited Edition of 500 Rose

The Audemars Piguet Royal Oak Offshore Diver is a limited edition watch from Japan, featuring rose gold titanium and a 42mm case size.

  • Condition: Very Good
  • Case Size: 42mm diameter
  • Limited Edition: one of 500
Posted at
Feb 21, 2025, 2:26 PM
Active
Audemars PIGUET ROYAL OAK STEEL 15450ST BLUE DIAL 37MM BOXES PAPERS

Audemars PIGUET ROYAL OAK STEEL 15450ST BLUE DIAL 37MM BOXES PAPERS

A 37mm Audemars Piguet Royal Oak Self Winding in stainless steel with a blue dial, purchased from an Audemars Piguet Boutique in 2018.

  • Condition: Excellent Condition
  • Bracelet size range: up to 6.75 inches wrist
  • Package type: Complete Packages/Set (double boxes)
  • Papers included: Yes
Posted at
Feb 20, 2025, 10:34 PM
Active
2005 Audemars Piguet Royal Oak 15300ST White Dial - Box and Papers

2005 Audemars Piguet Royal Oak 15300ST White Dial - Box and Papers

Audemars Piguet - 15300ST · $30,750
The Royal Oak, designed with a 39mm case size that is often worn slightly larger than traditional round watches. The white and steel case provides clean aesthetics, and the integrated bracelet has no slack.

  • Condition: Very sharp
  • Case Size: 39mm
  • Bracelet Type: Integrated
  • Wrist Fit: up to 7.5 inch
Posted at
Feb 20, 2025, 12:03 PM
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Audemars PIGUET ROYAL OAK 15510 STAINLESS STEEL BLUE NUIT DIAL 2023 FULL SET

Audemars PIGUET ROYAL OAK 15510 STAINLESS STEEL BLUE NUIT DIAL 2023 FULL SET

A 2023 41mm Audemars Piguet Royal Oak self-winding stainless steel watch with a Bleu Nuit, Nuage 50 dial.

  • Condition: Excellent, Unpolished Condition
  • Diameter: 41mm
  • Material: Stainless Steel
Posted at
Feb 19, 2025, 10:16 PM
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UNPOLISHED CASE MINT 2014 Audemars Piguet 15400ST Royal Oak 41mm with Box & Paper

UNPOLISHED CASE MINT 2014 Audemars Piguet 15400ST Royal Oak 41mm with Box & Paper

A 2014 Audemars Piguet Royal Oak 41mm watch in excellent condition, featuring a stainless steel case and black dial.

  • Condition: Excellent
  • Case size: 41mm diameter
  • Wrist size: 7 1/2 inches
Posted at
Feb 19, 2025, 9:31 PM
Active
Audemars Piguet Royal Oak Chronograph White Steel FULL SET MINT 26300ST

Audemars Piguet Royal Oak Chronograph White Steel FULL SET MINT 26300ST

Audemars Piguet - 26300ST · $34,073
The Audemars Piguet Royal Oak Chronograph features a white Grande Tapisserie dial with three subdials, protected by a glare-proof sapphire crystal. It has an elegant stainless steel case with brushed and polished finishes and an iconic octagonal bezel secured with eight hexagonal screws.

  • Condition: Mint
  • Case size: 41mm diameter
  • Materials: Stainless Steel
  • Water resistance: 50m depth rating
Posted at
Feb 19, 2025, 12:23 PM
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Audemars Piguet Royal Oak Offshore Ref. 26405CE

Audemars Piguet Royal Oak Offshore Ref. 26405CE

Audemars Piguet - 26405CE · $26,000
The Audemars Piguet Royal Oak Offshore Ref. 26405CE features a 44mm black ceramic and titanium case, making it a unique addition to any collection.

  • Case material: black ceramic and titanium
  • Size: 44mm
Posted at
Feb 19, 2025, 10:02 AM
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