A Royal Oak (Gérald Genta, 1972) is built on tolerances many counterfeit manufacturers struggle to hold. The integrated bracelet flows into the case without conventional lugs. The eight hexagonal bezel screws all sit in the same orientation. The tapisserie dial has real relief, not a printed imitation. The bracelet switches between brushed and polished surfaces along sharp, clean boundaries. Get one of those wrong and the watch reads as wrong under a loupe. Below is the field checklist, in the order to run it.
1. Tapisserie pattern depth
The dial has either Petite Tapisserie (15202 Jumbo) or Grande Tapisserie (15400, 15500, 26331 and most modern Royal Oaks). Both have real relief: a grid of small raised squares separated by fine grooves. Cheap counterfeit dials print the pattern on a flat surface; better ones stamp it, but the squares are often soft-edged or uneven, especially at the edge of the dial and around the markers. Tilt the dial under angled light: real tapisserie casts subtle shadows in the grooves; printed tapisserie reads flat.
2. Bezel screw alignment
The eight hexagonal bezel screws on a Royal Oak sit in a consistent orientation: the slot in each screw lines up the same way relative to the bezel. Counterfeit Royal Oaks often have slots at random angles. Look at the dial straight on: the screw slots should look organised. If they look randomly oriented, treat it as a strong counterfeit signal.
3. Applied AP logo
Depending on the reference, the applied AP monogram sits at 12 or 6 o’clock (the Jumbo carries it at 6). It is an applied metal mark with specific letterforms and proportions. Counterfeit logos typically have heavier or uneven strokes, or a printed (non-applied) execution. Compare it under a loupe with a known-genuine example of the same reference.
4. Hour-marker faceting
Royal Oak hour markers are applied batons with crisply polished facets. The luminous fill (where present) is contained neatly within the marker outline. Counterfeit markers often have soft or uneven facets, or lume that bleeds outside the marker frame.
5. Bracelet link transitions
The Royal Oak bracelet combines large, tapering brushed links with small polished intermediate links. The boundary between polish and brush is sharp, with no transition zone. Counterfeit bracelets often have a "soft" transition where polish bleeds into the brushed surface. Look along the boundaries under a loupe: on a genuine bracelet the lines are straight and crisp; on many fakes they waver or blur.
6. Case chamfer
The Royal Oak case and bezel carry polished chamfers that frame the brushed surfaces, finished by hand. Look at the case from the side and at the edges of the bezel: the chamfers should be even in width and continuous, with crisp boundaries on both sides. Counterfeit chamfers wobble in width, round off, or skip sections.
7. Crown profile
The Royal Oak crown carries the AP logo on its end, and its size and profile are specific to the reference. Compare the crown against a photo of a known-genuine example of the same model: counterfeit crowns are often the wrong diameter, sit at the wrong height against the case, or have a stamped rather than cleanly finished logo.
8. Movement signature on display backs
Modern Royal Oaks such as the 15400, 15500 and 15202 have a sapphire case-back that shows the movement: calibre 3120 in the 15400, 4302 in the 15500, and 2121 in the 15202 Jumbo. The rotor carries Audemars Piguet engraving, and the bridges carry Côtes de Genève. Read the rotor with a loupe; counterfeit rotors often have a stamped wordmark with a shallow, uniform font. A display back shows the finish, not whether the calibre is original or intact. A photo cannot answer that, and neither can WatchRadar; it takes a watchmaker opening the case.
9. Weight check
Weigh the watch and compare it with a known-genuine example of the same reference with the same number of links. Steel counterfeits often run light because of hollow bracelet construction. Better fakes get closer, so a correct weight clears nothing on its own, but a clearly light watch is a strong red flag. A kitchen scale finishes this check in 10 seconds.
10. Reference and serial cross-check
AP engraves the reference and serial numbers on the case. Both engravings are deep and crisp. Ask the seller for both and check that they match the warranty card or papers. WatchRadar reads the visible dial and caseback text when the photos are sharp enough, and flags text that contradicts the suggested reference. It does not check numbers against AP’s records.
When to escalate
Most modern Royal Oaks are high-value purchases. Pair the visual checklist with a WatchRadar scan, then have the case and movement opened by a qualified watchmaker or an Audemars Piguet service centre before the money is released. WatchRadar can’t see inside the case. Brand service is the most authoritative check; cost and waiting time vary, so ask when you book.