Short answer

A fake IW328021 v4 is a replica of an IWC Pilot's Watch sold under the fourth version label a seller uses. The v4 tag comes from the seller or from factory release notes. It is not printed on the watch. No public registry confirms which build counts as v4.

Fake IW328021 V10: What the Version Label Means and How to Check One

IW328021 is an IWC reference number. References in the 3280xx block belong to the Pilot's Watch Mark XX family. Confirm the dial, case metal, and strap for the exact number on IWC's own product page before you compare a replica against it.

fake iw328021 v6

What the reference covers

  • Case: stainless steel, 40 mm diameter, 10.8 mm thick
  • Water resistance: 100 m
  • Crystal: sapphire with anti-reflective coating on both faces
  • Movement: calibre 32111, automatic, 120 hours power reserve
  • Strap: leather or steel bracelet with the EasX-CHANGE system
  • Dial: black, white printed numerals and indices, date at 3

This block covers more than one dial and strap combination. Check the exact suffix.

fake iw328021 v6

What v4 means in practice

Replica factories ship in batches. Sellers number the batches v1, v2, v3, v4. There is no standard. Two sellers can call two different watches v4. A v4 from one source is not the same build as a v4 from another.

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Ask the seller for the factory name and a photo of the movement. That tells you more than the version number.

Parts that change between versions

  • Dial printing: font weight on the IWC and SCHAFFHAUSEN text, spacing of the minute track
  • Date wheel: font, size of the window, alignment at 3
  • Crystal: height above the bezel, clarity, coating color
  • Caseback: engraving depth, text placement, serial stamping
  • Crown: logo shape, thread feel, number of turns to seat
  • Bracelet and clasp: link fit, end link gaps, logo depth
  • Movement: rotor decoration, jewel count, beat rate

Movement in replica builds

Most replicas of this model use one of three movements: a Miyota 9015 or 9039, a Seagull ST21, or a decorated clone of the IWC 32111. The genuine calibre 32111 runs 120 hours on one wind. A Miyota-based replica runs about 42 hours. A Seagull runs about 40 hours. Power reserve is one of the few things you can test at home. Wind it to full, set the time, and leave it in a drawer.

Checks before you pay

  1. Measure case thickness with a caliper. Target 10.8 mm.
  2. Measure lug width. Target 20 mm.
  3. Check date alignment at 3 with the crown pushed in and pulled out.
  4. Look at the crown logo under 10x magnification.
  5. Ask for a video of the second hand sweep and the date flip at midnight.
  6. Confirm the return policy in writing before payment.

Price

Replica Mark XX builds sell from about $250 to $450. Steel bracelets, clone movements, and double-coated sapphire push the price to the top of that range. The genuine watch sells for several thousand US dollars. The price gap is large, and it is the first sign to check.

Legal and practical risk

US law bars import and sale of counterfeit goods. Customs and Border Protection can seize a shipment, and the buyer loses the money. Resale carries separate liability. Water resistance on replicas is not tested by the seller, so do not swim with one.

What is not known

There is no public list of v4 builds for IW328021. Version numbers change with each seller. Treat a v4 claim as unverified unless the seller shows the movement and the factory tag.