Audemars Piguet Royal Oak Royal Oak Perpetual Calendar Stainless Steel / Silver

Reference 25820ST.OO.0944ST.03

About this watch

The Audemars Piguet Royal Oak Perpetual Calendar is a masterpiece of horological engineering, combining classic elegance with advanced mechanics. Crafted from high-quality stainless steel, this watch features a silver dial and sapphire glass that captures light beautifully. The open case back reveals the exquisite AP 2120 / 2802 automatic movement, boasting functions including hours, minutes, date, day, leap year, month, and a perpetual calendar. Notable features include an extra-thin movement, moonphase complication, and water resistance of 20 meters. This timepiece exudes sophistication, making it suitable for any occasion. As an investment, the Royal Oak Perpetual Calendar retains or increases in value over time, offering unparalleled craftsmanship and a rich heritage. With its stunning aesthetics and advanced movement, this watch is designed to be treasured for generations.
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MSRP: $40,500
Market Price: $109,775

Key Features

  • Automatic AP 2120 / 2802 movement
  • Perpetual calendar with leap year adjustment
  • Moonphase complication with Physical Vapor Deposited metal on sapphire
  • Water resistance of 20 meters
  • Extra-thin movement (28.40 mm in diameter)
  • Sapphire glass for scratch-resistance and crystal clarity
  • Stainless steel case with silver dial

Specifications

Brand
Audemars Piguet
Family
Royal Oak
Model
Royal Oak Perpetual Calendar Stainless Steel / Silver
Reference
25820ST.OO.0944ST.03
Movement
ap-2120-2802
Movement Features
  • Hours, Minutes
  • Date, Day, Leap Year, Month, Perpetual Calendar
  • Moonphase
Case
Stainless Steel 39mm
Dial Color
Silver
Crystal
Sapphire
Water Resistance
20

Current Listings

[WTS] 2024 Audemars Piguet Royal Oak Chronograph 26240CE — Brand New Condition, Box & Papers

2024 Audemars Piguet Royal Oak Chronograph 26240CE — Brand New Condition, Box & Papers

Audemars Piguet - 26240CE · $112,000
The Audemars Piguet Royal Oak Chronograph showcases the iconic Royal Oak design executed in full black ceramic, delivering a bold yet refined presence.

  • Condition: Brand new condition
  • Size: 41mm diameter
  • Length: 51.4mm lug to lug
  • Thickness: 12.4mm thick
Posted at
Feb 11, 2026, 8:06 AM
Active
[WTS] Audemars Piguet Royal Oak Offshore Bleu Nuit Nuage 50 26238CD.OO.1300CD.01 Complete Set

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

The Audemars Piguet Royal Oak Offshore Bleu Nuit Nuage 50 is a brand-new 2025 release, featuring a bold design and unmistakable Offshore character with a 42mm case and full ceramic build.

  • Condition: Like new with no signs of wear
  • Case size: 42mm
  • Case thickness: 15.3mm
  • Water resistance: 100m (10 ATM)
Posted at
Feb 10, 2026, 9:13 AM
Active
[WTS] Vintage Seiko "Royal Oak" in perfect working order and good condition allover. Only watch no Box Papers. Asking 650$ including shipping

Vintage Seiko "Royal Oak" in perfect working order and good condition allover. Only watch no Box Papers. Asking 650$ including shipping

Seiko · $650
a vintage Seiko watch in good condition, described as perfect working order.

  • Condition: good
Posted at
Feb 9, 2026, 3:50 AM
Active
[WTS] Audemars Piguet Royal Oak Offshore 25940SK Rubberclad

Audemars Piguet Royal Oak Offshore 25940SK Rubberclad

A Royal Oak Offshore watch with a Rubberclad design, it's in good working condition and includes a Horus strap.

  • Condition: Pre-Owned
  • Year: UNK
  • Contents: Watch Only
  • Strap value: 15,000
Posted at
Feb 8, 2026, 7:42 PM
Active
[WTS] Audemars Piguet Royal Oak Offshore 26176FO Bumblebee

Audemars Piguet Royal Oak Offshore 26176FO Bumblebee

Audemars Piguet - 26176FO · $16,000
This Audemars Piguet Royal Oak Offshore Bumble Bee is a pre-owned watch that runs and functions with no issues.

  • Condition: Pre-Owned
  • Location: Located in Tennessee
Posted at
Feb 8, 2026, 7:40 PM
Active
[WTS] Audemars Piguet Royal Oak 15510OR 2022 50th Anniversary Full Set

Audemars Piguet Royal Oak 15510OR 2022 50th Anniversary Full Set

Audemars Piguet - 15510OR · $95,000
This is an Audemars Piguet Royal Oak 50th Anniversary watch from 2022, a significant milestone model. It comes with all original box and papers, and the seller is based in Tennessee.

  • Condition: Excellent
  • Year Of Production: 2022
Posted at
Feb 8, 2026, 7:00 PM
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[WTS] Audemars Piguet Royal Oak Offshore - $14,750

Audemars Piguet Royal Oak Offshore - $14,750

This is a white dial Audemars Piguet Royal Oak Offshore for sale. The watch has very few marks, which take away from its excellent condition.

  • Condition: Very Good
  • Payment Methods: crypto, Zelle, Venmo
Posted at
Feb 7, 2026, 4:44 PM
Active
[WTS] Vintage Seiko Sports 150 – Alarm Chronograph – 😏 “Poor Man’s AP Royal Oak” 😏 – 7T34-7A10 – $245 Shipped

Vintage Seiko Sports 150 – Alarm Chronograph – 😏 “Poor Man’s AP Royal Oak” 😏 – 7T34-7A10 – $245 Shipped

Seiko - 7T34-7A10 · $245
This vintage Seiko Sports 150 is a quartz-powered chronograph watch with date display, alarm functions, and an approximately 44mm case. It comes on its original bracelet and features clear signs of wear adding to its vintage character.

  • Condition: Poor condition with signs of wear and fading
  • Case size: approximately 44mm
  • Bracelet size range: fits wrists up to 8 inches
Posted at
Feb 7, 2026, 3:14 AM
Active
[WTS] Audemars Piguet Royal Oak Offshore Selfwinding Chronograph Ceramic Rose Gold Grey Dial 44mm Box & Papers 26405NR.OO.A002CA.01

Audemars Piguet Royal Oak Offshore Selfwinding Chronograph Ceramic Rose Gold Grey Dial 44mm Box & Papers 26405NR.OO.A002CA.01

This 44mm rose gold and black ceramic Audemars Piguet Royal Oak Offshore Selfwinding Chronograph features a smoked grey dial, mechanical movement, and is water resistant up to 100M.

  • Condition: Like new
  • Case Size: 44mm diameter
  • Movement Caliber: 3126/3840
  • Power Reserve: 50 hours
Posted at
Feb 6, 2026, 8:22 AM
Active