The short answer
IW329052 is an IWC reference number, and the 3290 block belongs to the Aquatimer Automatic line, the 42 mm steel dive watch. So a fake IW329052 is a counterfeit of a modern steel diver: 42 mm case, a dive timer you set with the lower crown, and either a rubber strap or a steel bracelet. Replica versions sell from about $70 to $450 depending on tier, and most of them get the case size right while missing everything that matters.
Here is the part buyers get wrong. The reference number stamped on a fake means very little. Sellers print whatever number helps the listing rank. What you are actually comparing is movement, case finishing, and dial printing.
Why this reference turns up in replica catalogs
Dive watches are easier to clone than dress watches. Thick cases hide movement height. Rubber straps hide end-link gaps. An Aquatimer has no precious metal, no display caseback worth staring at, and a dial that is largely black.
The 42 mm size helps the fakers too. It fits a wide range of wrists, so one case can be sold to almost anyone.
The three tiers you will see
- Under $100. Quartz or a cheap automatic, mineral glass, stamped clasp, painted bezel markings. The seconds hand stutters. Skip these if you plan to wear the watch more than twice.
- $150 to $280. Better case, sapphire crystal on the good ones, a Miyota or Seiko automatic inside. This is the sweet spot for most buyers.
- $300 to $450. Swiss movement claims or a decorated clone, sharper dial text, correct lug geometry. Diminishing returns start here.
Tells I check first
Dial printing is number one. IWC uses a fine, raised print. Cheap fakes look flat and hairy under a loupe. Next is the date window: the aperture should be cut clean, and the font inside should be thin and level. Third is the crown at four o'clock. On a real Aquatimer the inner bezel moves in firm clicks. On a fake it feels like a loose volume knob.
Then the caseback. Laser engraving on a clone is shallow and uneven on curves. Read the reference number itself. Bad fakes put the wrong digits or uneven spacing between them.
Movement reality check
Nobody puts an IWC in-house calibre in a $250 watch. What you get is a Miyota 9015, a Seiko NH35, or an unbranded Chinese automatic. That is fine. Those movements run, they can be serviced, and parts exist.
What you should not accept is a Swiss ETA claim at a low price with no photo of the movement. Ask for a photo with the caseback off. If the seller refuses, that is your answer.
Sizing and strap notes
The 42 mm case wears bigger than the number suggests because the bezel is wide and the lugs are short. On a seven-inch wrist it sits flat. The rubber strap is the safer pick for a replica, because a fake bracelet is where quality falls apart. Check the end links: if they rattle or leave a gap against the case, the bracelet is the weak point. Buy on the strap and add aftermarket rubber yourself if you can.
What I would pay
For a first replica of this reference, $200 to $260 with a sapphire crystal and a Miyota is a fair deal. Above $350 you are paying for details only a loupe will show. Below $120, expect to replace it within a year.
Quick checklist
- Movement photo before payment.
- Sapphire, not mineral, crystal.
- Clean date aperture and thin date font.
- Firm inner bezel clicks at four o'clock.
- Deep, even caseback engraving.
- A seller with a real return window.
One last thing. A counterfeit is a counterfeit. It will not hold value, IWC will not service it, and if you resell it you have to say what it is. Buy it because you like how it looks on your wrist, not because you think it is an investment.