Short answer

IW328080 is an IWC reference number. It does not appear in the IWC catalog as of this writing. The nearest live numbers are the Ingenieur Automatic 40 in the IW3289xx range and the Pilot's Watch Mark XX in the IW3282xx range. A listing that uses "IW328080" is either a copy of one of those two watches under a wrong number, or a number the seller made up. Ask for a photo of the caseback engraving before payment.

How IWC numbers work

IWC prefixes each reference with IW plus six digits. The first four digits group a family and a case size. 3289 covers the Ingenieur Automatic 40. 3282 covers the Mark XX. 3280 sits between them and is unassigned in the catalogs that can be checked. If the seller supplies a box, a card, or a service paper, the number printed there should match the caseback. A mismatch points to a mixed or invented listing.

Specs a copy has to match

The two candidate watches share a size class. The Ingenieur Automatic 40 has a 40 mm steel case, 10.8 mm thickness, an integrated H-link bracelet, sapphire on both sides, and a screw-down crown rated to 10 bar. The Mark XX has a 40 mm case, 10.8 mm thickness, and a 10 bar rating. Copies measure 40 to 41 mm. Thickness in most listings runs 11 to 12 mm, because the clone movement and the caseback stack sit taller than the IWC caliber 32111 in the real watch.

Movements used in replicas

  • Miyota 9015 (Japan). 24 jewels, 28,800 vph, about 42 hours of reserve.
  • Seagull ST2130 (China). Copy of the ETA 2824-2, 28,800 vph, about 40 hours of reserve.
  • Asian 2892 or 2824 copies with a decorated rotor. Higher tiers use these. Some engrave the rotor to look like IWC caliber 32111.
  • Quartz under a decorative plate. The seconds hand jumps one tick per second. Avoid at any price.

The genuine IWC caliber 32111 is built on a Sellita SW300-1 base with a 120 hour reserve. Replica movements run 40 to 50 hours in practice, so a listing that claims 120 hours is copying the spec sheet.

Price bands in the US market

Listings for an Ingenieur or Mark XX copy run about $220 to $380 with a Miyota or a Seagull movement, and $400 to $700 for a tier with a clone 2892, better finishing, and a sapphire crystal with inner anti-reflective coating. A genuine Ingenieur Automatic 40 in steel lists near $11,700. A Mark XX on a leather strap lists near $6,000. Prices under $150 point to a quartz movement or a plated brass case.

Checks before payment

  • Date wheel. Check the font and the centering in the window. Thin or off-center numerals appear on low tiers.
  • Dial print. "Schaffhausen" and "Automatic" should sit level with even spacing. Look at 10x magnification for doubled edges.
  • Bracelet and end links. Integrated bracelets are the hardest part to copy. Push the links sideways. There should be no rattle at the lugs.
  • Crown. Screw-down threads should catch in two turns or less. Gritty threads strip.
  • Lume. Charge the dial under a lamp for 30 seconds. Even glow across the markers points to a better dial.
  • Water resistance. Most replicas ship with no pressure test. Treat the watch as splash resistant and keep it out of pools and showers.

Ask for photos of the actual watch, not catalog images, plus a timestamp. Ask about the return window and the payment method.

Legal and ownership facts in the US

A counterfeit watch carries a trademark owned by the brand. Import into the US is barred by 19 U.S.C. § 1526. CBP can seize a shipment, and seizure notices list the goods as counterfeit. The buyer can lose the money paid plus shipping. Card payments carry a chargeback path. Wire transfers and crypto do not. Replicas come with no warranty, no parts network, and no service history.

Care after purchase

Service a Miyota 9015 or an ST2130 every 5 to 7 years. Replace gaskets at each service. Keep the watch away from hot water and saunas. Store it in a dry box. A watchmaker may decline to work on a counterfeit, so ask before you hand it over.