Quick answer

A fake Audemars Piguet Royal Oak Perpetual Calendar 26574 is a counterfeit watch. The genuine 26574 uses a true perpetual calendar movement, and most fakes do not. Treat any offer that claims a perfect clone with suspicion, and verify the watch through an authorized AP service center before you pay.

What the genuine 26574 includes

The reference 26574 is an ultra-thin Royal Oak perpetual calendar. The genuine watch uses AP calibre 5134, an automatic movement with a perpetual calendar, moonphase, and leap-year indication. The case is about 41 mm wide and about 9.5 mm thick. The dial layout includes day, date, month, moonphase, and a leap-year indicator. A counterfeit often copies the look but not the function.

  • True perpetual calendar that accounts for leap years.
  • Ultra-thin case profile and integrated bracelet finishing.
  • Correct subdial placement and printed text.
  • Display back with a finished in-house style movement.

Before you inspect

Use good light, a loupe, and a caliper. Ask for clear photos of the dial, caseback, movement, clasp, and paperwork. If the seller refuses any of these photos, stop.

How to identify a fake 26574

  1. Ask for a close photo of the movement through the display back. Look for the AP logo, rotor finish, bridges, jewel count, and engraving quality. A rough module or plastic spacer is a red flag.
  2. Measure the case thickness with a caliper. A watch that measures well over the genuine ultra-thin profile is suspect.
  3. Inspect the dial print with a loupe. Check the AP logo, the words AUDEMARS PIGUET, and the calendar text. Thick print, wrong accents, and misaligned subdials are common on fakes.
  4. Compare the subdial positions with an official 26574 photo. The day, date, month, moonphase, and leap-year layout should match the reference.
  5. Check the hands and hour markers. Genuine parts have sharp facets and correct finish. Flat or roughly polished parts point to a fake.
  6. Examine the case and bracelet finishing. Look for crisp bevels, even brushing, and polished edges. Soft edges and uneven gaps are red flags.
  7. Have a watchmaker test the calendar change at a month end. A true perpetual calendar should handle February and leap years without manual correction.
  8. Verify the serial number and service history with an authorized Audemars Piguet service center. Do not rely on a seller's printout.

Paperwork and listing red flags

  • Price far below the current secondary market for a 26574.
  • Stock photos only, with no movement or caseback images.
  • Claims of a 1:1 clone with a true perpetual calendar.
  • Box and papers with serial numbers that do not match the watch.
  • A seller who pushes a quick sale or refuses a service check.

Legal and ownership risks

Counterfeit watches are illegal to sell or import in the United States. They carry no manufacturer warranty, no reliable parts support, and no assurance of water resistance or timekeeping. Customs officers can seize counterfeit imports. A fake 26574 may look close in photos, but it will not deliver the function or long-term ownership of the genuine reference.