Audemars Piguet Royal Oak Royal Oak 25820 Perpetual Calendar Platinum / Blue

Reference 25820PT.O.0944PT.01

Audemars Piguet Royal Oak 25820 Perpetual Calendar Platinum / Blue

About this watch

The Audemars Piguet Royal Oak 25820PT.O.0944PT.01 is a masterpiece that embodies the perfect blend of luxury and functionality. The exquisite platinum case gleams under any light, while the blue Grande Tapisserie dial adds a touch of sophistication with its intricate pattern. The stick hands glide smoothly across the dial, powered by the remarkable Audemars Piguet caliber AP 2120 / 2802 movement. This automatic movement boasts a 40-hour power reserve and a frequency of 21,600 beats per hour, ensuring precision and reliability. The perpetual calendar complication is beautifully executed, allowing the watch to know the date, day, leap year, and month without adjustments. The platinum bracelet complements the case perfectly, feeling luxurious against the skin. With a sapphire crystal and water resistance of 20 meters, this watch is resistant to scratches and everyday wear. It's a worthy investment for those who appreciate both beauty and functionality.

Buy Now on Jomashop

This is an affiliate link

Key Features

Exquisite platinum case
Blue Grande Tapisserie dial with intricate pattern
Audemars Piguet caliber AP 2120 / 2802 movement with 40-hour power reserve
Perpetual calendar complication with date, day, leap year, and month functions
Platinum bracelet for a luxurious feel
Sapphire crystal for scratch resistance
20-meter water resistance

Specifications

Brand

Audemars Piguet

Family

Royal Oak

Model

Royal Oak 25820 Perpetual Calendar Platinum / Blue

Reference

25820PT.O.0944PT.01

Movement

ap-2120-2802

Movement Features

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

Case

39mm

Dial Color

Blue

Crystal

Sapphire

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

Active

View listing on r/WatchExchange

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

Active

View listing on r/WatchExchange

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

Active

View listing on r/WatchExchange

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

Active

View listing on r/WatchExchange

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

Active

View listing on r/WatchExchange

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

Active

View listing on r/WatchExchange

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

Active

View listing on r/WatchExchange

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

Active

View listing on r/WatchExchange