The short answer
The Royal Oak 67651 is a 33 mm quartz watch, and that one fact decides how you should shop for a replica. Because the genuine movement is a battery quartz calibre, a replica cannot win or lose on a decorated automatic rotor. It stands or falls on the case chamfers, the bezel screw work, the dial stamping, and the bracelet taper. Judge those four things with measurements and macro photos, and treat every seller claim about "Swiss movement" or "1:1" as marketing until the case proves it. Before you compare anything, pull the exact reference details from the official Audemars Piguet listing, and go in knowing that counterfeit watches are illegal to import into the United States and can be seized in transit with no refund to you.
Know the genuine reference first
Every comparison you make is only as good as the reference you hold in your head. The 33 mm Royal Oak quartz family uses an integrated case and bracelet, an octagonal bezel held by eight visible screws, a Grande Tapisserie dial, and a date window. Case material appears in stainless steel and in gold, and some versions carry a diamond-set bezel. Ask the seller which exact variant a replica is meant to copy, then check that variant against the brand's own published dimensions. If a seller cannot name the variant, the listing is guesswork from the start.
Where replica 67651s fall apart
Case and bezel finishing
The Royal Oak relies on a sharp contrast between brushed top surfaces and mirror polished bevels. On low grade replicas the bevel is buffed round, the brushing runs in one direction across the whole case, and the transition between the two finishes smears. Ask for a macro shot taken with raking light across the bezel edge. Flat studio lighting hides exactly the flaw you need to see.
Bezel screws
Eight screws, each seated flush, with slots that show consistent orientation from piece to piece. Replicas often have screws that sit proud, sit sunk, or rotate at random angles from one another. On a 33 mm case each screw is small, so misalignment is easy to spot in a straight-on photo.
Dial and date
The Grande Tapisserie grid should read as crisp raised squares with clean gutters between them. Cheap stamping looks shallow and soft, and the squares lose their edge at the chapter ring. The date font should be thin and the window should sit level with a clean internal step. A fuzzy date print or an off-center window is a common giveaway.
Bracelet
The bracelet tapers as it moves toward the clasp, and the links should articulate with light resistance and no rattle. Replicas frequently use wider links at the clasp than the genuine piece, which changes the whole silhouette on a small case.
Parameter bands to measure
These are the bands worth checking with calipers and a scale. Confirm each against the official specs for the exact variant, because gold and diamond-set versions add weight.
- Case diameter: 33 mm nominal, measured across the bezel at both axes.
- Case thickness: quartz Royal Oaks sit in the thin band, roughly 7 mm. Anything past 8.5 mm distorts the proportions on a 33 mm case.
- Bracelet width: roughly 18 to 20 mm at the first link, tapering to about 14 to 16 mm at the clasp.
- Weight in steel with a full bracelet: expect a range near 80 to 110 g depending on link count.
- Lug to lug and end link fit: the first link should meet the case with a tight seam and no shadow gap.
Pitfalls that cost real money
- Sample swapping. A seller photographs one watch, ships another. Ask for a timestamped photo and a video with the watch on a scale.
- Water resistance claims. The genuine reference carries a modest depth rating. A replica has no testable rating, and a quartz watch still needs gaskets and seals. Do not swim in it.
- Stone bezels. Genuine versions use diamonds. Replica stones are usually cubic zirconia, and importing counterfeit goods set with stones draws more scrutiny, not less.
- Movement description. A quartz replica contains a generic quartz calibre that no authorized service center will touch. Independent shops may change a battery, and that is often the ceiling of the support you can expect.
- Payment with no recovery. Wire transfers and direct app payments leave you with no chargeback when a parcel is seized or the watch arrives wrong.
- Resale value. Replicas have none. A genuine pre-owned 67651 trades in the thousands of dollars, which is the number to keep in view when a replica listing asks a large fraction of it.
FAQ
Does the 67651 have a running seconds hand?
Check the dial layout for the exact variant before you buy. If the genuine dial shows only hours, minutes, and a date, then a ticking seconds hand on a replica is an instant mismatch.
Can a replica pass as genuine in person?
It may at arm's length in poor light. It will not survive a close look at the case chamfer, the bracelet end link fit, or the dial stamping, which are the three areas replicas consistently miss.
Is buying one legal?
Importing counterfeit goods into the United States is prohibited. Shipments can be seized and destroyed, and the buyer generally has no route to recover the money. Selling counterfeits carries separate and heavier exposure.
What is the sensible alternative?
If the goal is the look rather than the name, a legally sold octagonal-bezel watch from a mainstream brand gets you the silhouette with real warranty support. If the goal is the genuine piece, buy pre-owned from a seller who provides the original certificate and has the watch authenticated before it ships.
Bottom line
Measure the case, photograph the bezel edge in raking light, count and inspect the eight screws, and check the bracelet taper against the real reference. If a seller resists any of those requests, walk away. The 67651 is a small, thin, heavily finished watch, and every shortcut in its manufacture shows up at exactly that scale.