Short answer

A fake Big Pilot is a copy of the IWC Big Pilot's Watch. The genuine model comes in two main case sizes: 43 mm and 46.2 mm. Copies reproduce the case, dial and conical crown. Most fail on the movement. The 46.2 mm Big Pilot runs an IWC in-house calibre with a 168-hour power reserve. The 43 mm version runs calibre 82100 with a 60-hour reserve. Most counterfeits carry a generic Asian or Unitas-type hand-wound movement with 38 to 48 hours of reserve. A power reserve indicator that empties in two days or does not move is the clearest single sign.

Genuine specs to compare

  • Case diameter: 43 mm on the Big Pilot 43, or 46.2 mm on the Big Pilot 46.
  • Case material: stainless steel, titanium, ceramic or precious metal, matched to the reference number.
  • Power reserve: 60 hours on the 43 mm, 168 hours on the 46.2 mm.
  • Water resistance: 100 m on the Big Pilot 43.
  • Crystal: sapphire, with antireflective coating on both faces on most references.
  • Dial: large Arabic numerals, triangle at 12, no small seconds on the 43 mm.
  • Caseback: solid on several references, sapphire display on others. Check the reference.

Where counterfeit copies break down

  • Movement finish. Genuine IWC calibres show Geneva stripes, blued screws, perlage and a signed rotor. Copies show stamped plates and flat plating.
  • Power reserve. A 7-day indicator that stops after 48 hours is a copy.
  • Crown. The genuine conical crown has sharp knurling and threads that engage in about 3 turns. Copies feel gritty and cross-thread.
  • Dial print. Genuine numerals are applied and polished, and they sit at one height. Copies use printed or flat markers with patchy lume.
  • Caseback engraving. Genuine engraving is sharp and shallow with even letter spacing. Copies cut deep and wide, and the text blurs.
  • Serial and reference. Genuine numbers match the reference on file with the maker. Copies reuse one number across large batches.

Price and legal context

IWC Big Pilot steel references list between about $8,000 and $16,000 USD, based on size, material and year. Counterfeits sell from about $80 to $900. Under 19 U.S.C. section 1526, import of goods with a counterfeit mark is barred. U.S. Customs and Border Protection seizes those shipments, and the buyer loses the money paid. The FBI treats counterfeiting as intellectual property theft.

Checks before money changes hands

  1. Ask for the reference number. Compare it to the maker catalog.
  2. Ask for a photo of the caseback and the serial number.
  3. Ask for service records or original papers.
  4. Have a watchmaker open the case. Movement identification takes a few minutes.
  5. Send the watch to a Richemont service center for inspection. IWC does not run a public serial lookup tool.

Limits of any check

No photo check confirms a watch. A case, dial and hands can be genuine while the movement is a copy, and the reverse is possible. Only hands-on inspection by a trained watchmaker or a service center settles the question. Counterfeit quality changes each year, so signs that held in 2015 may not hold now.