Short answer

IW328020 does not appear in IWC's published list of Pilot's Watch Mark XX references. The Mark XX line sits in the IW3282xx block, for example IW328201 and IW328203. Sellers use "IW328020" as a listing name for a 40 mm steel pilot watch with a black dial, a date at 3 o'clock, and a brown or black strap. Treat the number as a replica trade label, not a confirmed catalog reference. If a listing shows that number and a low price, the watch is a copy.

Genuine Mark XX specs to compare

  • Case: 40 mm diameter, 10.8 mm thick, stainless steel, 120 m water resistance
  • Crystal: sapphire, anti-reflective coating on both faces
  • Movement: IWC caliber 32111, automatic, 120-hour power reserve, 4 Hz (28,800 vph)
  • Dial: black, applied numerals, white lume, date window at 3
  • Strap: EasX-CHANGE quick release, steel bracelet or leather

Measure first. A copy often runs 41 to 42 mm wide and 13 mm thick. A genuine 40 mm Mark XX case sits flat on a 7-inch wrist.

Replica grades and price bands

  • $50 to $120: alloy case, mineral glass, no-name 21,600 vph movement, snap caseback, hollow end links
  • $150 to $300: 316L steel, Miyota 8215 or 9015, sapphire glass, printed dial
  • $350 to $600: "super clone" with a copy case and dial, decorated rotor, correct font

Prices move with shipping and customs risk. A $600 copy still holds no resale value.

Checks that separate a copy from a genuine watch

  1. Caseback: reference, serial, and country of origin engraving. Genuine laser etch is thin and even under a loupe. Copies show rough edges and deep cuts.
  2. Date wheel: font, position, and alignment in the window. Copies sit high or left.
  3. Movement: put it on a timegrapher. Caliber 32111 runs near 4 Hz. Most copies read 3 Hz or a 21,600 vph rate.
  4. Lume: charge the dial under a lamp for 30 seconds. Genuine Super-LumiNova glows green or blue for hours. Copies fade in minutes.
  5. Bracelet: check the EasX-CHANGE release and the micro-adjust clasp. Copies use spring bars and a friction clasp.
  6. Crown: count the threads and feel the winding. Gritty threads point to a copy.

Import and legal risk in the US

Counterfeit goods are banned from import. U.S. Customs and Border Protection can seize a shipment and destroy it. 19 U.S.C. 1526 covers trademark violations. Resale of a copy can bring civil damages under the Lanham Act and criminal charges in repeat cases. A seized package means the money is gone.

What a copy will not have

No IWC warranty card, no My IWC registration, no 8-year warranty, and no service from an authorized center. Parts for the copy movement come from the same seller or not at all. Water resistance claims on copies are unverified. Keep a copy away from pools and showers.