Audemars Piguet · men · mechanical watches · watch brand
Audemars Piguet Royal Oak 26574ST Review: Skeleton Perpetual Calendar
The Audemars Piguet Royal Oak 26574ST remains a defining model in luxury steel sports watches. Its skeletonized dial and perpetual calendar make it highly desirable among collectors. In the market, the edition strives to mirror every nuance, from the iconic octagonal bezel to the intricate moon phase display. This review provides a comprehensive analysis of build quality, movement reliability, and essential purchasing factors.
Case and Build Quality
The case, bezel, and bracelet are crafted from 316L stainless steel. At 41mm in diameter, it matches the original's dimensions. The three-part construction (bezel, middle case, and caseback) is CNC-machined to replicate the correct weight and brushing. The bezel screws are functional and properly aligned. The exhibition caseback reveals the movement. The sapphire crystal offers scratch resistance and features a subtle blue anti-reflective coating.
- Case diameter: 41mm
- Case material: 316L stainless steel
- Crystal: Sapphire with anti-reflective coating
- Caseback: Transparent display
- Water resistance: Suitable for daily wear; avoid swimming
Movement and Functions
This houses a customized Cal.5134 movement. It provides a full perpetual calendar, including day, date, month, moon phase, and leap year indicator. All functions are operational and adjustable via the crown or correctors. The movement's decoration mimics the original, featuring Geneva stripes, blued screws, and an engraved rotor. Accuracy is within +-10 seconds per day, which is impressive for a.
- Timekeeping: Central hours and minutes
- Perpetual calendar: Day, date, month, moon phase
- Leap year indication
- All correctors function smoothly
Skeleton Dial Design
The openworked dial showcases the movement's inner mechanics. The bridges are skeletonized and finished with rhodium or gold, depending on the version. The indices and hands are polished and filled with Super-LumiNova for low-light visibility. The date window sits at 3 o'clock, with month and leap year subdials at 12 and 9. The moon phase at 6 o'clock features a realistic moon disc with stars.
Strap and Comfort
The watch is offered with a stainless steel bracelet, with optional leather or rubber straps. The bracelet features alternating brushed and polished links, secured by a folding clasp with the AP logo. It feels comfortable on the wrist, although the clasp might require adjustment for a perfect fit. The weight is substantial, similar to the genuine piece.
Buying Tips and Authenticity Checks
To avoid lower-quality versions, inspect the following details:
- Movement finishing: Look for clean Geneva stripes, not rough edges.
- Dial printing: The text 'Audemars Piguet' and 'Automatic' should be crisp and evenly spaced.
- Moon phase disc: Stars should be sharp, not blurred.
- Date change: At midnight, the date should snap quickly without dragging.
- Lume: Apply light; Super-LumiNova should glow evenly.
- Caseback engraving: Movement number and brand logo should be deeply engraved.
Always purchase from a reputable seller who provides genuine photos and offers a warranty. Prices typically range from $400 to $700 depending on the source.
Who It Suits
The Royal Oak 26574ST is perfect for watch enthusiasts who admire high complications but are not prepared to invest six figures. It appeals to collectors of slim, integrated-bracelet sports watches and those who appreciate skeleton dials. It is not intended for rough daily wear; handle with care.
Styling Notes
This watch pairs well with business casual attire, thanks to its brushed steel and black-dial contrast. It also suits formal events, even with a tuxedo. The skeleton dial invites conversation, so expect compliments. For a sportier look, switch to a black rubber strap.

