Short answer: 366338 is a case-level code that shows up on Cartier Pasha listings, most often tied to a 41mm steel Pasha de Cartier with the screw-down crown cap and chain. It is not a single official Cartier catalog number. Cartier sells the same family under W-prefixed references, so a code like 366338 sits closer to a case stamp or a seller's shorthand than to a factory SKU. That matters, because two replicas carrying the same code can still differ in case size, dial layout, and movement. Check those three things first.

What the code usually points to

The Pasha line launched in 1985, designed by Gérald Genta, and it borrows its shape from a 1930s Cartier made for the Pasha of Marrakesh. The signature traits: a round case, four large Arabic numerals, a smooth bezel, and a crown hidden under a screw cap on a small chain. When a listing says 366338, expect a steel case in the 41mm range, an automatic movement, and a date window. Some sellers use the same code for the 35mm and 38mm versions, which is the first thing I verify. Ask for the measured case width across the bezel, not the lug-to-lug, and compare it to what the listing claims.

Dial variants also split here. The plain dial and the grille dial are different watches, and a seller photo of one with a spec sheet for the other is a common bait pattern.

Movement tiers you will see

  • Quartz: thin, cheap, correct only for the small ladies' sizes. A quartz 41mm is wrong.
  • Asian 2824 or 2892 clone: the usual automatic option. Sweep is decent, winding is coarse.
  • Swiss ETA 2824 or Sellita SW200: smoother, and it makes the price jump.
  • 7750-based chrono clones: only relevant if the dial has subdials. Thick case, noisy rotor.

I ask for a photo of the movement with the caseback off. Any seller who will not send one is guessing too.

The crown cap and chain

This is where replicas fall apart. On a real Pasha the cap threads on with a tight, fine pitch and the chain has small, evenly sized links that sit flat. On cheap copies, the cap wobbles, the threads feel gritty, and the chain is oversized with visible gaps. Check that the cap sits flush with the case flank when closed, and that the cabochon in the crown is a clean blue with no cloudiness.

Dial, hands, and date

  • Numeral font: the Cartier numerals are wide with flat terminals. Copies often look narrow and rounded.
  • Hands: blued sword hands should read dark blue, not purple or flat black.
  • Print: the logo and text should sit sharp under magnification, not fuzzy or doubled.
  • Date: it should sit centered in the aperture and flip close to midnight, not drift at 11pm.

Case and caseback

Look at the finishing split. The bezel is polished, the case flanks are brushed on most steel Pashas, and the transition between the two should be crisp. Blurry polishing means a heavy hand with a buffing wheel. Caseback engraving should be shallow and even, with reference and serial lines that line up. Deep, jagged engraving is a giveaway. The lugs are short and rounded, and the chain anchor point beside the crown should be welded, not glued.

Water resistance

Assume nothing. Most replicas ship with gaskets that were never tested, and a screw-down cap does not mean the case is sealed. I treat every replica as splash-only and never swim or shower with one. If you want it pressure tested, a local watchmaker can do that, but replacing gaskets usually costs more than the watch is worth.

Price bands

Under about $80 you get quartz or a low-grade automatic, hollow feeling, and a sloppy crown cap. The $150 to $300 range buys a decent 2824 clone, real sapphire, and better dial printing. Above $400 you are paying for a Swiss movement and hand finishing, and at that point the money is close to a used quartz original, which is worth considering.

Red flags

  • Stock catalog photos with no live shot of the actual unit.
  • "1:1 super clone" with no movement photo.
  • A serial number that matches another listing you already saw.
  • Pressure ratings claimed without a test sheet.

Last thing

A replica is not the real watch. It has no resale value, no service history, and no warranty behind it. In the United States, counterfeits are illegal to import and are subject to seizure at the border, and trademark holders can pursue sellers. Know that before you spend, and treat the worst case as money gone.