A fake Audemars Piguet Perpetual Calendar 26574 fails on the movement before it fails on the dial. The genuine Royal Oak Perpetual Calendar 26574 is a 41 mm watch just 9.5 mm thick, built on the ultra-thin Calibre 5134, a true perpetual calendar that encodes the leap-year cycle. Replicas sold as "first copy" or "super clone" 26574s use a Japanese or Chinese base movement with a bolted-on calendar module, so day, date, month and moon phase drift apart, and February 29 breaks them.
Can a replica Audemars Piguet 26574 keep a perpetual calendar?
No. A perpetual calendar must mechanically handle 28, 29, 30 and 31 day months plus the four-year leap cycle. The 5134 does this with a stacked cam and lever system, and the calendar is set through recessed correctors rather than the crown alone. Replica 26574s at any price tier use a day-date or annual calendar module that needs manual correction every February.
What are the fastest visual tells on a fake 26574?
- Case thickness. Genuine 26574 measures about 9.5 mm. Most replicas sit 11 mm to 13 mm tall and lose the flat Royal Oak profile.
- Dial layout. The 26574 carries month, day, date, moon phase, leap year and a week-of-year scale on the flange. Replica dials often print a decorative week scale and substitute a 24-hour day and night disc for a real moon phase.
- Grande Tapisserie. Genuine squares are cut with sharp edges. Replica tapisserie looks shallow, rounded and soft under magnification.
- Caseback. A genuine 26574 has a sapphire display back showing Geneva stripes, circular graining and a skeletonized gold rotor. Replicas show unfinished brass or a rotor with printed engraving.
- Hands and markers. Genuine hands are beveled to a mirror polish. Replica hands show tool marks and uneven luminous fill.
What should a buyer check before paying for a 26574?
Ask for the reference and serial, a service record, and clear photos of the movement under magnification. Genuine 26574 examples trade at auction and on the secondary market in the tens of thousands of dollars, so a listing in the hundreds or low thousands cannot be a real one. Independent authentication by a watchmaker who services Audemars Piguet complications is the only dependable check.
Is buying a fake Audemars Piguet Perpetual Calendar 26574 legal in the US?
No. Counterfeit watches violate trademark law, and US Customs and Border Protection can seize and destroy shipments at the border. Buyers typically lose the money paid, with no recourse through the payment platform or the seller. Reselling a counterfeit can also trigger criminal charges under federal counterfeiting statutes.
The term "first copy" describes a replica grade, not an authentic watch. No replica of the 26574 shares parts, finishing or calendar architecture with the real reference, and no replica retains value.