Is the AP Royal Oak 16402 a real reference?
No. Audemars Piguet has never catalogued a reference 16402, so any watch sold under that number is either mislabeled or counterfeit. Sellers use it as a loose catch-all for Royal Oak Jumbo and 41 mm selfwinding models, which in reality carry numbers like 16202, 15400, or 15500. When a listing treats 16402 as a factory reference, that alone is a strong counterfeit signal.
Fake AP Royal Oak 16402 Watch Guide
Why does the 16402 label show up so often?
The number blends two genuine references, the 16202 Jumbo and the 15400, which makes it look plausible to a casual buyer. Grey-market and replica listings copy each other, so the same invented number spreads across marketplaces. That repetition creates a false sense of legitimacy.
How do you spot a fake Royal Oak 16402?
Dial and tapisserie pattern
Genuine Royal Oak dials use a Grande Tapisserie grid cut with sharp, uniform walls and crisp edges on every square. Replicas show soft, rounded pyramids, uneven spacing, or a printed pattern that flattens under raking light. On the Jumbo layout, the AP monogram sits above the date window and must be applied and polished, not stamped flat.
Date window and cyclops-free crystal
Authentic date apertures are cut cleanly with beveled edges, and the date wheel font is thin and centered. Fakes often show a crooked window, a thick date font, or a magnifying effect the real watch does not have. Check alignment at 3 o'clock from a low angle.
AP Royal Oak 16402 Replica Watch: The Ultimate Guide
Movement and caseback
Real Royal Oaks run in-house calibers, and the Jumbo 16202 uses the ultra-thin selfwinding 7121. Replicas usually hide a modified generic automatic with a decorated rotor and engraved bridges that look busy but shallow. Open the caseback if you can, and compare jewel count, balance wheel finish, and engraving depth against published specs.
Bracelet, screws, and weight
The Royal Oak bracelet tapers, flexes smoothly, and uses polished beveled links with flush-fitting screws. Fakes feel lighter than the stated stainless steel or gold weight, and their bracelet edges catch on skin. Screw slots on a counterfeit are often off-center or cut at different depths.
Case finishing and bevels
Hand finishing leaves sharp transitions between brushed top surfaces and mirror-polished chamfers. Counterfeits blur that line or polish the entire case, which makes the octagonal bezel look soft. Run a fingernail along a bevel: a real edge feels crisp, a fake feels rounded.
What should a genuine Royal Oak cost?
Stainless steel Royal Oak models trade in the tens of thousands of dollars on the secondary market, and gold versions sit higher. A listing asking a few hundred dollars for a full-set 16402 box and papers is not a bargain. Counterfeit sales are illegal in the United States, and buyers have no warranty, service, or resale path.
Frequently asked questions
Does Audemars Piguet make a 16402?
No. The number does not appear in the Audemars Piguet reference catalogue, and the closest genuine models are the 16202 and 15400.
How much does a fake Royal Oak cost?
Replica Royal Oaks typically sell between 100 and 800 US dollars depending on movement type and finish quality.
Can a watchmaker confirm authenticity?
Yes. A qualified watchmaker can verify the movement, caseback engravings, and finishing under magnification, and Audemars Piguet service centers can authenticate a genuine piece.
Bottom line
The moment a seller calls a watch an AP Royal Oak 16402, you are looking at a wrong reference number, a counterfeit, or both. Verify any Royal Oak against the official reference list before money changes hands.