Quick answer

IW329085 sits in IWC's IW3290 block. IWC lists IW3290 as the Aquatimer Automatic 42, a 42 mm dive watch with 300 m water resistance in the genuine build. I could not confirm IW329085 in IWC's public catalog, so the last two digits may mark a dial, strap, or boutique variant. A replica of this reference is a copy. It is not an IWC product, it carries no IWC warranty, and IWC will not service it.

What the reference number tells you

IWC writes references as IW plus six digits. The first four digits set the family. The last two set the variant.

  • IW3290: Aquatimer Automatic 42, steel, 42 mm, caliber 30120 in the 2014 generation.
  • Last two digits: dial color, hand finish, strap, or a limited run.
  • Caliber 30120: IWC-modified ETA 2892-A2 base, about 42 hours of power reserve.

Genuine Aquatimer Automatic 42 cases measure near 42 mm wide and 14 mm thick. Lug width is 22 mm on the rubber strap. Catalog data changes per generation, so confirm any single reference against an IWC service quote.

What replica versions ship with

  • Case: 316L steel common. 904L steel and bronze are less common. Weight runs 10 to 20 percent below the genuine.
  • Movement: Seagull ST2130 or a Hangzhou 6300 copy of the ETA 2892. Some sellers install a Miyota 9015.
  • Crystal: sapphire with inner anti-reflective coating.
  • Bezel: rotating dive bezel with a printed or ceramic insert. Alignment varies by batch.
  • Strap: rubber on a tang buckle.
  • Case back: engraved Aquatimer text. Engraving depth is the common tell.

Checks before you pay

  1. Ask for a photo of the movement through the case back.
  2. Ask for a timegrapher readout. Rate should hold within plus or minus 10 seconds per day.
  3. Confirm crown operation. A stiff crown on a diver points to a bad gasket seat.
  4. Get water resistance stated in writing. Most replicas hold no pressure test.
  5. Compare the date window position and font against a photo of the genuine dial.

Legal status in the United States

Counterfeit watches are illegal to import and illegal to sell in the US. 18 U.S.C. 2320 makes trafficking in counterfeit goods a federal crime. Customs and Border Protection seizes counterfeit shipments and destroys them. One replica bought for personal use still risks seizure and a customs penalty. Sellers shipping from overseas cannot enforce returns or warranty service.

Price bands

Wholesale listings for this reference run about $180 to $420 per unit at single-piece pricing. Tier differences come from the movement, the steel grade, and dial printing. A seller quoting $80 for a "Swiss made" 1:1 unit is not shipping what the listing describes. The phrase "Swiss made" on a counterfeit good carries no legal meaning.