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

2017 Audemars Piguet Royal Oak 41mm 15400OR Rose Gold White Dial - $35,800

Audemars Piguet - 15400OR.OO.D088CR.01 · $35,800

A 2017 Audemars Piguet Royal Oak 41mm in rose gold with a white dial.

Condition: Excellent overall condition
Box Papers: Yes
Warranty Papers: Dated 2017
Strap Size: Adjustable White Rubber (7.25in - 8.0in)

Posted at

Dec 23, 2025, 1:29 PM

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Audemars Piguet - 26238CD.OO.1300CD.01 · $129,995

The Audemars Piguet Royal Oak Offshore Bleu Nuit Nuage 50 is a brand-new 2025 release with an in-house flyback chronograph movement and a 70-hour reserve. It features a bold design, unmistakable Offshore character, and serious presence thanks to its blue ceramic build and 42 mm case.

Condition: Like new
Case Size: 42 mm
Case Thickness: 15.3 mm
Case Material: Blue ceramic with titanium caseback

Posted at

Dec 23, 2025, 8:46 AM

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1988 Seiko Quartz Chronograph “Royal Oak” Ref. 7A38-7280 | $325

Seiko - 7A38-7280 · $325

The Seiko Quartz Chronograph is a two-tone, angular watch inspired by the Royal Oak design. It features a slim and refined appearance, powered by the jewelled Seiko 7A38 quartz movement.

Condition: Good condition for its age
Case Size: 37.3 x 41.5mm stainless steel case
Thickness: 10.8mm
Movement Type: Quartz

Posted at

Dec 22, 2025, 7:08 PM

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AUDEMARS PIGUET Royal Oak 41mm Rose Gold Brown Dial Exhibition Caseback 26239OR

Audemars Piguet - 26239OR · $87,900

A stunning Royal Oak features a bold brown dial set against a 18k rose gold case and integrated bracelet. The watch is both elegant and sporty with modern flair.

Condition: Excellent condition
Case material: 18k rose gold
Bracelet type: integrated

Posted at

Dec 22, 2025, 1:46 PM

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2017 Audemars Piguet Royal Oak Offshore Diver 42mm White AP Complete Set MINT

Audemars Piguet - 15710ST.OO.A002CA.02 · $19,936

This 2017 Audemars Piguet Royal Oak Offshore Diver features a 42mm steel case, clean white dial, and sporty rubber strap, making it perfect for collectors who appreciate AP's heritage and modern character.

Condition: Excellent
Case size: 42mm diameter
Movement: automatic 3120 caliber

Posted at

Dec 21, 2025, 8:44 PM

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Audemars Piguet Royal Oak w/ Black Dial - Ref. 15500ST

Audemars Piguet - 15500ST / 15500 · $38,700

This listing is for a beautiful 41mm Audemars Piguet Royal Oak reference 15500ST with a black dial. The watch comes as a complete set and includes all necessary documents.

Condition: Great condition
Diameter: 41mm
Case material: unknown

Posted at

Dec 21, 2025, 11:54 AM

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