Answer
The reference 24807 does not appear in Audemars Piguet records for the Royal Oak Concept line. Concept references run in the 259xx, 262xx, 265xx, and 266xx blocks. A watch sold as a Royal Oak Concept 24807 carries a number that does not match the model name in the listing. That mismatch is the first check. Price is the second. Concept pieces trade between $120,000 and $1,500,000. A listing at $400 is a replica.
What The Reference Number Tells You
Audemars Piguet assigns one reference to one case, one movement, and one material set. The number 24807 sits outside the Concept range. Buyers who know the catalog spot the error in one line. Replica sellers reuse retired or invented numbers because the digits look plausible to a first-time buyer.
Case And Materials
Concept cases use forged carbon, titanium, ceramic, and sapphire. Inspect the case flank under a lamp. Forged carbon from AP shows random marbling with no repeat pattern. Cast copies show a printed grid or a uniform swirl. A titanium Concept at 44 mm weighs about 100 grams with the strap. A plated brass or steel copy of the same size sits 30 to 60 grams heavier on a kitchen scale.
Movement
Concept watches run in-house calibers with skeleton bridges and a visible balance. Turn the watch over. AP engraves the caliber number on the bridge and on the barrel bridge edge. Copies show laser etching with rough edges, or no engraving at all. A genuine hand-wound Concept movement runs at 21,600 vibrations per hour.
Dial, Hands, And Crystal
Openworked Concept dials carry the AP logo and no date window on most references. Hands are faceted with polished bevels. Print on a fake logo sits flat and thick. Sapphire crystals have double anti-reflective coating. A copy shows blue or purple glare from an angle.
Papers, Serials, And Service Records
AP issues a warranty card that lists the case serial and the reference. The caseback, the movement, and the card carry matching numbers. Ask for the original invoice and the AP service record. A seller who cannot produce either is selling something else.
Price Floors
- Royal Oak Concept retail: $150,000 and up.
- Secondary market: $120,000 to $1,500,000.
- Replica listings: $200 to $1,200.
Checks In Order
- Match the reference number to the AP catalog.
- Weigh the case and compare it to the spec sheet.
- Inspect the movement engraving with a 10x loupe.
- Compare the serial on the caseback to the warranty card.
- Request a service record or a third-party authentication.
Legal Position In The US
18 U.S.C. 2320 makes trafficking in counterfeit goods a federal offense. US Customs and Border Protection can seize and destroy counterfeit watches at ports of entry. Buyers of replicas hold no warranty, no service path, and no resale value.