Audemars Piguet Perpetual Calendar Replica: Answer First
A replica Audemars Piguet perpetual calendar copies references such as the Royal Oak ref. 26574 and the Code 11.59 Perpetual Calendar. Sellers post prices from $400 to $1,200 for most copies. No replica matches the genuine calibre 5134. The real movement has 374 parts, 38 jewels, and 40 hours of power reserve. Copies use a base automatic movement with a calendar module on top. Most moonphase subdials on copies are 24 hour day/night discs. A true moonphase tracks the 29.5 day lunar cycle. Check that first.
What the Genuine Watch Does
The ref. 26574 Royal Oak Perpetual Calendar is 41 mm wide and 9.5 mm thick. It shows day, date, month, leap year, and moonphase. The calendar accounts for leap years. It needs no manual correction until 2100. The 2018 Royal Oak Perpetual Calendar Ultra-Thin ref. 26586 uses calibre 5133 and measures 6.3 mm thick. The Code 11.59 Perpetual Calendar uses calibre 5134 in a 41 mm case. Water resistance on the 26574 is 50 m.
How Replica Sellers Build the Watch
Most replica AP perpetual calendars use a Japanese or Chinese automatic base. Common bases include the Miyota 9015 and the Seagull ST series. A calendar plate sits between the movement and the dial. The plate carries the day, date, month, leap year, and moonphase wheels. This stack adds height. A replica of a 9.5 mm watch often measures 11 mm or more. Ask for a caliper photo.
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Case finishing is the second gap. Genuine Royal Oak cases have sharp bevels, brushed flats, and polished chamfers. Replicas show softer edges and wider gaps at the bracelet links. The tapisserie dial pattern on copies can look stamped, not milled. Print on the dial can sit above the surface. Use a macro photo of the Audemars Piguet signature.
Movement Checks
- Ask for a photo of the caseback and the rotor engraving.
- Set the date to 28 February and advance to 1 March. A true perpetual calendar jumps to 29 February in a leap year.
- Watch the moonphase. A 24 hour disc shows sun and moon, not a lunar cycle.
- Measure power reserve. Genuine 5134 runs 40 hours. Most copies run 36 to 40 hours on a base movement.
Price Tiers
Entry copies sell for $400 to $600. These use a stock base movement and a printed dial. Mid tier copies sell for $700 to $1,000. They add a clone rotor, sapphire crystal, and better bracelet finishing. Top listings ask $1,200 and more. Price does not prove function. A $1,200 copy can still carry a day/night moonphase.
What No Replica Does
No replica AP perpetual calendar matches the 5134 service life. Genuine service intervals run 5 to 8 years. Parts for the calendar module come from Audemars Piguet. A replica module has no parts support. A broken leap year wheel can stop the calendar. Water resistance claims need a pressure test. Most copies pass 3 bar, not the 50 m rating on the genuine 26574.
Sale and import of counterfeit watches is illegal in the US. Customs can seize shipments. Treat any sale claim as a risk item, not a warranty.
Questions to Ask Before Paying
- Which reference does the case copy: 26574, 26586, or Code 11.59?
- What base movement sits under the calendar plate?
- Does the moonphase advance once per day or once per lunar month?
- What is the measured case thickness?
- Is the crystal sapphire or mineral glass?