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

[WTS] Audemars Piguet Royal Oak 37mm Diamonds 15551OR.ZZ.1356OR.04 White 3/2026

Audemars Piguet Royal Oak 37mm Diamonds 15551OR.ZZ.1356OR.04 White 3/2026

Audemars Piguet - 15551OR.ZZ.1356OR.04 · $98,500
A 37mm Audemars Piguet Royal Oak with a white/silver tapestry dial and diamond bezel in rose gold, available as a complete March 2026 set.

  • Condition: Mint condition
  • Case size: 37mm
  • Dial color: white/silver
  • Bezel type: diamond
Posted at
Apr 24, 2026, 3:05 PM
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[WTS] AUDEMARS PIGUET Royal Oak Offshore Diver Chrono Orange 26703ST.OO.A070CA.01

AUDEMARS PIGUET Royal Oak Offshore Diver Chrono Orange 26703ST.OO.A070CA.01

Audiveris Piguet - 26703ST.OO.A070CA.01 · $27,500
The AP Royal Oak Offshore Diver Chronograph is a bold and highly functional sports watch that blends the iconic Offshore design with professional diving capability. This example features a striking orange dial with chronograph subdials, paired with an internal rotating dive bezel and a stainless-steel case.

  • Condition: Excellent
  • Case material: stainless steel
  • Band: orange rubber strap
Posted at
Apr 24, 2026, 10:20 AM
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[WTS] AUDEMARS PIGUET Royal Oak 41mm Chrono White Dial Steel 26320ST.OO.1220ST.02

AUDEMARS PIGUET Royal Oak 41mm Chrono White Dial Steel 26320ST.OO.1220ST.02

Audemars Piguet - 26320ST.OO.1220ST.02 · $35,900
This AUDEMARS PIGUET Royal Oak Chronograph features a 41mm case size, crisp white 'Grande Tapisserie' dial, and stainless steel octagonal bezel. It delivers a balanced and sporty aesthetic while maintaining refined finishing.

  • Condition: Excellent
  • Case size: 41mm diameter
  • Water resistance: 30m depth rating
Posted at
Apr 24, 2026, 9:16 AM
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[WTS] Audemars Piguet Royal Oak Offshore Bleu Nuit Nuage 50 Beige Dial 43mm 26420CD.OO.A029VE.01

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 a blue ceramic bezel, contrasting blue sub-dials and a matching blue rubber strap. It is powered by the integrated Calibre 4401 movement.

  • Condition: Brand new
  • Movement Type: Mechanical (Automatic)
  • Case Size: 43mm
  • Water Resistance: 100m depth rating
Posted at
Apr 24, 2026, 8:32 AM
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[WTS] Audemars Piguet Royal Oak Offshore Diver Stainless Steel Grey Dial 42mm 15720ST.OO.A009CA.01

Audemars Piguet Royal Oak Offshore Diver Stainless Steel Grey Dial 42mm 15720ST.OO.A009CA.01

Audemars Piguet - 15720ST.OO.A009CA.01 · $25,395
The Audemars Piguet Royal Oak Offshore Diver is a rugged evolution of the Royal Oak DNA, built for 300m depth without breaking a sweat.

  • Condition: Excellent condition with little to no signs of wear
  • Case size: 42mm diameter
  • Case thickness: 14.2mm
  • Case material: Stainless Steel
Posted at
Apr 24, 2026, 8:31 AM
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[WTS] AUDEMARS PIGUET Royal Oak 37mm Grey Dial Stainless Steel 15450ST.OO.1256ST.02

AUDEMARS PIGUET Royal Oak 37mm Grey Dial Stainless Steel 15450ST.OO.1256ST.02

Audemars Piguet - 15450ST.OO.1256ST.02 · $38,900
A modern classic in the Royal Oak family, this 37mm stainless steel watch features a grey dial and AP's automatic movement. Compact and elegant, it suits both men and women with iconic Royal Oak design cues.

  • Condition: Excellent
  • Case size: 37mm
  • Movement: Automatic
Posted at
Apr 24, 2026, 8:22 AM
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[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

Audemars Piguet - 26405NR.OO.A002CA.01 · $42,495
This 44mm rose gold and black ceramic Audemars Piguet Royal Oak Offshore Selfwinding Chronograph has a smoked grey dial with a beautiful Mega Tapisserie pattern, making it a stunning timepiece.

  • Condition: like new
  • Case Size: 44mm diameter
  • Case Material: rose gold and ceramic
  • Dial Color: smoked grey
Posted at
Apr 24, 2026, 8:21 AM
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[WTS] Audemars Piguet Royal Oak Offshore Diver 42mm Funky Green 15710ST.OO.A038CA.01

Audemars Piguet Royal Oak Offshore Diver 42mm Funky Green 15710ST.OO.A038CA.01

Audemars Piguet - 15710ST.OO.A038CA.01 · $32,000
This is a 42mm Audemars Piguet Royal Oak Offshore Diver with a funky green dial, featuring an automatic movement and a water resistance of 300 meters.

  • Condition: Excellent pre-owned condition
  • Case diameter: 42mm
  • Band material: Rubber, Fizzy Lime Green
  • Bezel material: Stainless Steel with Inner Bezel Diving Scale
Posted at
Apr 23, 2026, 5:11 PM
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[WTS] AUDEMARS PIGUET Royal Oak 43mm Offshore Rose Gold Titanium 26420OI.OO.A015VE.01

AUDEMARS PIGUET Royal Oak 43mm Offshore Rose Gold Titanium 26420OI.OO.A015VE.01

AUDEMARS PIGUET - 26420OI.OO.A015VE.01 · $54,500
This AUDEMARS PIGUET Royal Oak Offshore has an unrivaled luxury look with its contrasting rose gold case and titanium bezel, paired with a grey dial and textured calfskin strap.

  • Condition: Excellent condition
  • Case material: 18k rose gold and titanium
  • Diameter: 43mm
  • Strap material: grey textured calfskin
Posted at
Apr 23, 2026, 1:21 PM
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