Audemars Piguet Royal Oak Royal Oak 25554 Perpetual Calendar
Reference 25554ST.O.0344ST.01
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

Audemars Piguet Royal Oak 15500
A Royal Oak from 2022 with a black dial, featuring a light scratch and small ding on the case.
- Condition: Very good condition, unpolished
- Size: 41mm diameter
- Year: 2022

1986 Audemars Piguet 56175TR Tantalum Royal Oak
This 1986 Audemars Piguet Royal Oak features a 33mm x 5.8mm tantalum and rose-gold case with longitudinal satination, a rose-gold bezel, and a tantalum dial with rose gold indices and hands.
- Case size: 33mm diameter
- Case material: tantalum and rose-gold
- Bezel material: rose-gold

Audemars Piguet Royal Oak Offshore Tourbillon Chronograph Titanium 26407TI
This timepiece features a skeleton dial that reveals the impressive tourbillon and chronograph complications, highlighted by vibrant orange accents. The sandblasted finish on both the case and bezel gives the watch a matte look.
- Condition: Mint condition
- Case Material: Sand Blasted Titanium
- Dial Type: Skeletonized dial
- Band Type: Black rubber strap with titanium pin buckle