Fake Audemars Piguet complications fail on function long before they fail on looks. A counterfeiter can copy a perpetual calendar dial, but the sub-dials do not track a real calendar, the moonphase drifts within days, and the pushers on a fake chronograph often move nothing at all. Test the functions first, then the case, then the movement. That order tells you more than any single photo.
Why Complications Are the Hardest Feature to Copy
A complication is any function beyond hours, minutes, and seconds. Audemars Piguet builds annual calendars, perpetual calendars, moonphase displays, chronographs, tourbillons, and minute repeaters. Each one adds parts that must work together under load. A copied dial and a copied case are cosmetic problems. A perpetual calendar that knows February in a leap year is a mechanical problem, and that is where replica work shows. Calendar and chronograph models expose a fake faster than a plain three hand watch ever will.
Prerequisites Before You Inspect
- A 10x loupe or a phone macro lens
- Daylight or a 5000K lamp
- The official reference number and a genuine reference photo
- A phone timer for chronograph checks
- A watchmaker contact for a caseback inspection
How to Check a Watch Step by Step
- Write down the reference number from the caseback or the seller listing.
- Pull the official image for that reference and compare the sub-dial positions.
- Set the date to the 30th and advance the crown to the 31st.
- Watch the date wheel change to the 1st and note whether it jumps or drags.
- Set the moonphase to a known new moon date and check it again three days later.
- Start the chronograph and let it run sixty seconds.
- Stop the chronograph and compare the elapsed reading against a phone timer.
- Press each pusher and note the resistance and the reset snap.
- Inspect the dial printing with a loupe and look for soft or merged letters.
- Examine the hand edges and the polished bevels under the same loupe.
- Check the caseback engraving depth and the font of the reference number.
- Ask a watchmaker with brand parts access to open the case and photograph the movement.
Movement and Caseback Checks
Open the case only when you own the watch or the owner agrees. Look for the finish on the bridges, the shape of the rotor, and the engraving on the balance cock. Genuine Audemars Piguet movements carry crisp, deep engraving and consistent Geneva stripes. Replica movements show stamped plates, uneven finishing, and rotor text that sits off center. A calendar module bolted onto a basic movement is another sign, since the date change will not sync with the month and moonphase windows.
Common Red Flags in Listings
- No movement photos, only dial shots
- A price far below market for the reference
- A seller who avoids questions about the calendar or chronograph
- Stock photos used in place of the actual watch
- Warranty cards without a matching reference number
When to Pay for a Professional Authentication
Book an inspection when the watch involves a perpetual calendar, a tourbillon, or a minute repeater. Those functions cost real money to build and to service, so the stakes justify a bench fee. A watchmaker who services Audemars Piguet can confirm the movement family, check the calendar module, and document the findings in writing. That report protects you in a return or a dispute far better than any photo set.