Short answer
A fake Pilot's Watch Mark XVIII is a copy of IWC's 40mm three-hand pilot's watch, usually built in China and sold for somewhere between 60 and 400 dollars. The better ones copy the case, dial, and crystal well enough to fool a photo. Almost none of them copy the movement, the finishing, or the tolerances. And in the United States, importing one is a customs problem no matter what you paid.
What the real Mark XVIII is
IWC replaced the Mark XVII with the Mark XVIII in 2016, and it is a deliberately plain watch. That lack of decoration is why counterfeiters like it, and it is also what makes the copies easy to judge.
- 40mm stainless steel case, about 11mm thick, 20mm lug width
- Calibre 35111, based on a Sellita SW300-1, 42 hours of power reserve
- Sapphire crystal with anti-reflective coating on both faces
- Soft-iron inner cage for magnetic protection
- Closed caseback engraved with a Junkers Ju 52
- Date at 3 o'clock, no small seconds, no power reserve display
- 60 metres of water resistance, which is modest even on the original
Those numbers matter because they are the first place a replica fails. A 40mm case is easy to make. A 40mm case that sits 11mm tall and wears flat is not.
The tiers sellers name
Entry level
Quartz or a rough automatic, wrong thickness, a dial that looks flat under light. These fall apart in a year.
"AAA" or "1:1"
Usually a Chinese automatic such as an A2892, which is a copy of the ETA 2892. The case is decent, the anti-reflective coating is too blue, and the date font is often off.
"Swiss movement" claims
Sometimes a real ETA or Sellita inside a copy case. Sometimes a lie. The price jumps either way.
"Super clone"
The closest cosmetic match, occasionally with a decorated rotor. Still not the same watch, and still not serviceable by IWC.
Where fakes give themselves away
- Thickness. Measure it with calipers. Copies often come in at 12mm or more.
- Crystal. The genuine coating is nearly invisible. Copies glare purple or blue at an angle.
- Dial print. Numerals should be crisp and even. Copies look soft or slightly thick.
- Date. Check the window position and the weight of the printed digits.
- Lume. Uneven application, or a shade that leans too green.
- Crown. The fish mark is engraved, not stamped, and the crown should not wobble in the tube.
- Caseback. The Ju 52 engraving on copies is often laser-etched and looks shallow and grey.
- Strap. Originals come on thick, firm leather. Most copies ship with thin, stiff leather.
How to check one in hand
- Ask for the case thickness in millimetres instead of accepting a photo.
- Look at the crystal from a low angle under a lamp.
- Set the date to a single digit and check the alignment.
- Wind it and listen. A Sellita-based movement is quiet and smooth.
- Inspect the caseback engraving with a loupe.
- Hold the head. A steel case should feel dense, not hollow.
What you give up
No warranty, no service from IWC, no resale value, and no parts support once the movement dies. An independent watchmaker can usually drop in a replacement movement, but a cracked crystal or a damaged dial means the watch is finished. Anyone treating a copy as an investment is going to be disappointed, because the resale market for them barely exists.
The legal side
US Customs and Border Protection seizes counterfeit watches at ports of entry, and trafficking in counterfeit goods carries criminal penalties under federal law. Buying one for personal use is not the same as selling them, but the parcel can still be stopped and destroyed, and you have no recourse and no refund. That is worth knowing before the money leaves your account.