Audemars Piguet Royal Oak Royal Oak 25554 Perpetual Calendar

Reference 25554ST.O.0344ST.01

Audemars Piguet Royal Oak 25554 Perpetual Calendar

About this watch

The Audemars Piguet Royal Oak 25554ST.O.0344ST.01 is a masterpiece of horology, blending elegance and sophistication with technical excellence. Produced in 1981, this perpetual calendar watch marked a significant point in horological history, featuring a stainless steel construction and intricate details on the dial. The silver-colored 39mm case strikes an ideal balance between boldness and refinement, while the stick-shaped hands and dot indexes provide easy readability. The Audemars Piguet caliber AP 2120 / 2800 automatic movement is renowned for its precision and reliability, boasting a power reserve of 40 hours and operating at a frequency of 21,600 vibrations per hour. With 38 jewels, this extra-thin movement is a testament to the brand's engineering prowess. The Royal Oak 25554 is not only a stunning timepiece but also a valuable investment, holding its value well due to its heritage and craftsmanship. Its ergonomic design makes it surprisingly comfortable on the wrist, while the stainless steel bracelet is both stylish and adjustable.

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Key Features

39mm stainless steel case
Silver-colored dial with stick-shaped hands and dot indexes
Perpetual calendar functionality
Audemars Piguet Caliber AP 2120 / 2800 automatic movement
38 jewels, power reserve of 40 hours, frequency of 21,600 vibrations per hour
Sapphire glass for scratch protection
Water-resistant to a certain extent

Specifications

Brand

Audemars Piguet

Family

Royal Oak

Model

Royal Oak 25554 Perpetual Calendar

Reference

25554ST.O.0344ST.01

Movement

ap-2120-2800

Movement Features

Hours, Minutes
Date, Day, Month, Perpetual Calendar

Case

Stainless Steel 39mm

Dial Color

Silver

Crystal

Sapphire

Current Listings

[US] Audemars Piguet Royal Oak ‘Jumbo’ Blue Dial 39mm Stainless Steel - AP 15202st Full Set - $75,500

Audemars Piguet - 15202ST · $75,500

This listing is for a stainless steel Audemars Piguet Royal Oak 'Jumbo' with a blue dial, measuring 39mm in diameter.

Diameter: 39mm

Posted at

May 5, 2026, 9:33 AM

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MINT Audemars Piguet Royal Oak Offshore Diver Watch Only $16,900

Audemars Piguet - 15710ST · $16,900

2015-2021 J-series Royal Oak Offshore Diver with a black dial, running strong and in good working condition.

Condition: MINT
Case size: 42mm diameter
Depth rating: 200m water resistance

Posted at

May 4, 2026, 4:27 PM

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Audemars Piguet Royal Oak Offshore 43mm Titanium Blue 26420ti.oo.a027ca.01

Audemars Piguet - 26420ti.oo.a027ca.01 · $26,900

This Audemars Piguet Royal Oak Offshore is a 43mm titanium model with a blue dial. It's in near mint condition and comes with all original box and warranty card.

Condition: near mint condition
Size: 43mm diameter
Materials: titanium

Posted at

May 4, 2026, 11:22 AM

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1995 Audemars Piguet Royal Oak 120th Anniversary LE ref. 56975ST w/ Box & Extract

Audemars Piguet - 56975ST · $21,800

1995 Audemars Piguet Royal Oak 120th Anniversary LE with a blue petite tapisserie dial and stainless steel bracelet.

Condition: Excellent, minimal wear
Case material: stainless steel
Diameter: 33mm diameter
Lug width: 23.5mm lug width

Posted at

May 3, 2026, 8:14 PM

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Audemars Piguet Royal Oak Offshore 15710ST.00.A002CA.02 Excellent Condition

Audemars Piguet - 15710ST.OO.A002CA.02 · $1,645

This is an Audemars Piguet Royal Oak Offshore Diver in excellent condition, running strong with healthy amplitude and accuracy.

Condition: Excellent pre-owned condition
Water resistance: 100m
Depth rating: 100m

Posted at

May 3, 2026, 2:01 PM

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Audemars Piguet Royal Oak Chronograph Blue Dial 26320ST

Audemars Piguet - 26320ST · $45,000

This Audemars Piguet Royal Oak Chronograph features a blue tapisserie dial and has a chronograph function along with a date window with quickset. It is powered by an automatic caliber 2385 movement with a 40 power reserve.

Condition: Very Good, minor signs of use on the case and minor patina/discoloration around the subdials
Movement type: Caliber 2385 automatic movement
Power reserve: 40 hours
Water resistance depth: 50m

Posted at

May 1, 2026, 12:57 PM

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Audemars Piguet Royal Oak Offshore Bleu Nuit Nuage 50 Beige Dial 43mm 26420CD.OO.A029VE.01

Audemars Piguet - 26420CD.OO.A029VE.01 · $86,995

The Audemars Piguet Royal Oak Offshore Bleu Nuit Nuage 50 features a beige dial with blue sub-dials and a matching blue ceramic bezel, contrasting the bold Offshore silhouette. The watch is powered by the integrated Calibre 4401 movement, offering a flyback function and a full view through the sapphire caseback.

Condition: Brand new
Case Size: 43mm diameter
Movement Caliber: Calibre 4401
Power Reserve: 70 hours

Posted at

May 1, 2026, 8:35 AM

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