Short answer
"Millenary 3" is not an Audemars Piguet reference number. Audemars Piguet numbers the Millenary line with five digits, such as 15350, 26380 and 77244, followed by a two-letter metal code: ST for steel, OR for pink gold, BA for yellow gold. A listing titled "Millenary 3" carries a shop code, a platform listing number or a marketing name. Ask for the caseback number first.
What the Millenary is
The collection began in 1995. The case is an oval. The dial sits off-center inside the oval, so the hands do not sit in the middle of the watch. Case size changes by reference; the Millenary 4101 measures about 47 mm by 42 mm. Metals include steel, yellow gold, pink gold, white gold and platinum. Several references use Roman numerals and a big date, a small seconds subdial, or a tourbillon.
Why the digit after the name matters
Marketplace sellers add numbers to separate near-identical watches. Two Millenary 4101 watches in the same metal and the same dial differ by serial, not by a "3". If a listing shows "Millenary 3" and a price in the low hundreds of dollars, the item is a counterfeit. Genuine Millenary watches change hands for thousands of US dollars, and gold or tourbillon versions go higher.
Case and dial checks
- Caseback engraving. Real AP text is cut with even depth and sharp corners. Copies show shallow letters, uneven spacing, or a reference that does not match the metal.
- Reference and serial. The two numbers must fit the metal and the dial layout. Counterfeit batches reuse one serial across many watches.
- Case profile. A Millenary has a stepped bezel and a defined lug line. Copies look flat or too thick at the mid-case.
- Dial print. Check the logo edges, the minute track alignment, the lume plots, and dust under the crystal.
- Crystal. AP fits sapphire with anti-reflective coating on both faces. Copies show a strong glare or a purple tint.
- Crown. Inspect the engraving under 10x magnification. Fake crowns show a rough cut and a wrong logo shape.
Movement checks
The Millenary 4101 uses calibre 4101, a self-winding mechanical movement with an off-center rotor and a display back. Look for Geneva stripes, polished bevels, straight graining on the bridges, blued screws, and a balance wheel that swings when the watch moves. A quartz movement, a glued rotor, or a rotor with no engraving points to a copy. Counterfeit movements also drift in rate in a way a genuine AP calibre does not.
Papers, service and authentication
Audemars Piguet issues an Extract from the Archives for many older watches and services watches through its own network. A watchmaker with AP parts access can open the case and confirm the movement. Ask for the service record, the invoice and the box. None of these items proves authenticity by itself, because boxes and papers are copied too.
Legal status in the United States
Importing counterfeit watches into the US violates 19 U.S.C. 1526, and US Customs and Border Protection can seize the goods. Selling a counterfeit watch can bring criminal charges under 18 U.S.C. 2320 and civil claims from the trademark owner. "1:1" and "mirror" are seller terms. No replica holds an Audemars Piguet movement.
Before you pay
- Get a photo of the caseback with the reference and serial legible.
- Match the reference to the metal and the dial in the AP catalog.
- Ask for the watchmaker report if the caseback has been opened.
- Confirm the return window in writing.
- Compare the asking price to auction results for the same reference.