Short answer: a genuine Pasha de Cartier has a crown cap attached to the case by a small articulated chain, a smooth blue spinel cabochon, thin and consistent dial printing, and a caseback whose reference and case numbers follow Cartier's own format. Most fakes get at least two of those wrong, and the chain is the one they almost never get right.

Three things "fake Pasha" can mean

• A counterfeit sold as a real Cartier, which is the version that costs people money.
• A replica or copy watch, built to look like a Pasha and sold as what it is.
• A genuine Pasha rebuilt with an aftermarket dial, hands, or bracelet.

All three turn up in the same searches, and the checks below work on all of them.

The crown chain is the hardest part to fake

On a real Pasha, the crown sits under a screw-down cap, and that cap hangs from a short chain fixed to the case at the 3 o'clock side. The links move. The chain has a set length so the cap can be unscrewed and laid flat without pulling on the case. On fakes the chain is often a single cast piece, stiff, or welded so it cannot pivot. Look at the link ends under a loupe. Genuine links are rounded and polished on every face. Copies show flat spots and a burr where the casting was trimmed.

Cabochon, bezel, and case finish

Cartier sets a blue spinel in the crown cap. It is a dome, not a bead, and it sits flush in a polished seat with no glue line. Fakes use resin or dyed glass, and you can usually see it: a flat top, a bubble inside, or a color that shifts toward purple under LED light. Run a fingernail around the bezel edge. Real Cartier cases are polished or brushed in continuous passes, so the transitions feel smooth. Cheap cases have a ridge where the brushing stops.

Dial printing and the numerals

The Pasha keeps four Arabic numerals at 12, 3, 6, and 9 against an otherwise clean dial, with "PASHA DE CARTIER" and "AUTOMATIC" stacked below the 12. On a genuine dial the letters are thin, the spacing is consistent, and the print sits at the same depth across the whole block of text. Replica dials tend to print heavier, and the gap between "SWISS" and "MADE" at 6 o'clock is often wrong. Check the hour markers too: each one should line up with the printed track, with nothing sitting a hair left or right of center. On hand-finished copies that misalignment is common.

Caseback, reference, and case numbers

A real caseback carries the model name, reference number, case number, water resistance, and "Swiss Made," engraved rather than laser-etched onto the surface. The engraving has depth you can feel with a fingernail. The numbers also have to make sense. Cartier reference numbers follow a fixed pattern for the Pasha line, and the case number should differ from the reference. Fakes often reuse one case number across a whole batch. If you can compare two "identical" watches and they share a case number, that settles it.

Bracelet, clasp, and QuickSwitch

Modern Pasha references use Cartier's QuickSwitch system, where the strap or bracelet releases with a small tab at the lug. That tab should sit flush and click into place. On copies it wobbles or needs a tool. Check the clasp engraving, the end links, and the screws on a steel bracelet: real screws are slotted and removable from both sides, while fakes often have pins pushed through one side and capped on the other.

Movement and crystal

The current Pasha de Cartier runs Cartier's 1847 MC automatic, visible through a sapphire caseback on the steel and gold references. If the back is solid on a watch that should have an exhibition back, that is a problem. So is a rotor that spins with a tinny sound. The crystal should be sapphire, and it should not show the rainbow swirl that cheap mineral glass throws under a phone light.

If you are judging a copy, judge what you can see

Copy quality ranges from obvious to close. The differences that show up in daily wear are the ones worth checking: whether the crown cap chain actually articulates, whether the cabochon is a true dome, whether the dial print holds up at arm's length, and whether the end links sit tight against the case with no gap. Movement finishing and caseback engraving matter less once the watch is on your wrist, but they are the first things anyone with a loupe will study.

One legal point worth knowing

Selling a counterfeit as a genuine Cartier is trademark infringement and fraud, and in the US the FTC and Customs treat it that way. That is a separate question from what a copy is worth to you as a buyer, but it is the reason the word "fake" carries more weight than "replica."