Short answer
Reference 24807 does not appear in Audemars Piguet's published reference lists for the Royal Oak Concept. Watches sold under that number are copies, mislabeled listings, or assembled watches. AP's Concept range runs on references such as 25980AI, 26221, 26589 and 26620IO. The five-digit 24807 format comes from AP's 1990s numbering, not from the Concept line, which started in 2002.
What the Royal Oak Concept line is
AP launched the Concept in 2002 as a 30th anniversary piece for the Royal Oak. The case is a rounded octagon with a crown guard, an exposed movement, and a sapphire crystal over the dial. Later Concept models added tourbillons, GMT modules and chronograph functions. Production runs are small, often 100 to 500 pieces. Retail prices sit in the high six figures for some references, and auction results go higher.
Why 24807 appears in listings
Replica sellers use invented or borrowed reference numbers for two reasons. First, it avoids a direct match with a real AP reference that a buyer can check. Second, a five-digit number looks older and therefore safer to a buyer who only reads the model name. Searches for 24807 return replica storefronts, marketplace listings with no service history, and forum threads asking the same question. No AP catalog page, auction record, or AP service invoice uses it.
Checks on a Concept of any reference
Case and finish
Real Concept cases use titanium, ceramic, forged carbon or gold. Brushed and polished surfaces meet at sharp lines. Replicas show rounded edges, uneven brushing, and extra weight in steel copies. A 44mm titanium Concept weighs less than a steel copy of the same size.
Movement
AP Concept movements are hand-wound or automatic with visible finishing: Geneva stripes, chamfered bridges, perlage. Copies use decorated stock movements. Look at the balance wheel, the jewel count, and the beat rate. A 21,600 vph balance in a watch that should run at 28,800 vph points to a copy.
Dial and crystal
Dial text is sharp under a loupe. Copies show thick or blurred lettering and misaligned markers. Anti-reflective coating on the real crystal cuts glare. Copies skip it or coat one side only.
Caseback and paperwork
Casebacks carry the reference, case number, and material code. AP can verify a case number and a service history. Copies repeat one case number across units. Boxes, warranty cards and hang tags from replica sellers are printed in bulk and use fonts that differ from AP's.
Price and legality
Replica Concept models sell for $300 to $900. Genuine Concept pieces trade from $100,000 upward. Selling or importing counterfeit watches is illegal in the US under 18 U.S.C. 2320, and CBP seizes shipments of counterfeit goods. Buyers who resell copies carry the same exposure.
Questions for a seller
- What is the full reference, including the material suffix?
- What is the case number, and can AP confirm it?
- Are service records available?
- Does the seller allow an inspection by an independent watchmaker?
If the seller answers with the model name only, or names 24807, treat the watch as a replica.