A fake Audemars Piguet Royal Oak Chronograph 25940 is a copy of the 42 mm Royal Oak Offshore chronograph, and the fastest way to spot one is to inspect three things at close range: the bezel screws, the Mega Tapisserie dial, and the case bevels. Genuine examples use eight 18k white gold screws with deeply cut slots, a dial grid stamped with sharp edges and even depth, and lugs whose polished bevels run in one continuous line. Replicas break at two of those three points within seconds, before the case back even comes off.
What exactly is the reference 25940?
The 25940 is a Royal Oak Offshore Chronograph, the 42 mm steel sports watch that AP built around the oversized "Beast" case in the late 1990s and early 2000s. It carries a chronograph, a date at 3 o'clock, rubber-clad crown and pushers, and a Mega Tapisserie dial with larger squares than a classic Royal Oak. Because it is steel, photogenic, and popular, it is one of the most copied AP references on the market.
How do you spot a fake 25940?
Bezel screws
Genuine screws are 18k white gold, cut with clean slots, and set into a bevelled recess. Fakes often use chrome-plated steel that reads too bright or too grey against the case, and the slot edges look rounded or stamped instead of machined. Slot alignment varies on real watches, so judge the metal, the depth of the cut, and the countersink rather than alignment alone.
Dial and tapisserie
The Mega Tapisserie pattern is stamped and then finished, so the squares have crisp vertical walls under a loupe. Copies show shallow, soft-edged squares with uneven spacing, plus printed text that thickens at the ends of letters. Check the AP logo, the Swiss Made line at 6, and the date font, which is thin and evenly spaced on genuine examples.
Case, bevels, and brushing
AP finishes the case with alternating brushed surfaces and mirror-polished bevels that meet at a hard, straight line. Replicas blur that transition, over-polish the lugs, or leave tool marks in the brushed flats. Run a fingernail along the bevel: genuine edges feel crisp and uniform from lug tip to lug tip.
Movement, case back, and numbers
Most 25940 examples run the AP calibre 2226/2840, a modular chronograph, and the case back is engraved with the reference and movement numbers. Fake engraving is shallow, laser-cut, and inconsistent in font weight and spacing. On genuine watches the pushers start, stop, and reset with a firm mechanical click and the chronograph hands snap back to zero.
Weight, strap, and feel
A genuine 25940 on rubber feels dense and cold in the hand, with tight tolerances between the strap, the case, and the clasp. Replica rubber is softer, smells of plastic, and the clasp engraving is thin and blurry at the edges. Copies also tend to weigh less, especially when the bracelet or strap hardware is hollowed out.
What do fakes get wrong most often?
- Dial texture: shallow squares and flat printing that lacks a raised, lacquered look.
- Screws: wrong metal tone, soft slot edges, and inconsistent depth in the recess.
- Finishing: no true bevel, or a bevel line that wanders around the lug and case flank.
- Chronograph feel: mushy pushers and a reset that does not snap back to zero.
- Numbers: mismatched reference, case, and movement numbers, or fonts that change size across the back.
Does a fake 25940 use a real AP movement?
No. Copies use generic or cloned automatic chronograph movements, sometimes dressed up with a decorated rotor and fake engraving to imitate the 2226/2840. A watchmaker can confirm the movement in minutes, which is why an in-person inspection beats any set of photos.
Is buying a fake 25940 legal in the US?
Selling, importing, or trafficking counterfeit watches is illegal in the United States and can lead to seizure and civil liability. Personal-use buying sits in a grey area, but a replica can never be resold or represented as a genuine Audemars Piguet. Anyone shopping for a real 25940 secondhand should insist on paperwork and an authentication check.
What should you check before buying a 25940?
- Compare the engraved reference, case, and movement numbers to the paperwork and to AP records.
- Ask for macro photos of the dial, screws, case back, and clasp shot in daylight.
- Have a watchmaker or AP service center open the case and verify the movement.
- Compare the price against dealer comps, since a genuine 25940 sells in the tens of thousands of dollars.
How much does a genuine 25940 cost?
Secondhand prices for a genuine Royal Oak Offshore Chronograph 25940 usually sit in the tens of thousands of dollars, with box and papers adding a premium. Anything offered for a few hundred dollars is a replica, no matter how sharp the listing photos look. Pull current comps from a dealer before you commit.