The IW329149 reference belongs to IWC's Aquatimer Automatic 42 family, the dive watch line the brand builds around a 42 mm case, an in-house automatic movement, and a rotating bezel ring that drives an inner dive scale. A replica of it is not an IWC product in any sense. It is a third-party copy made to look like that watch from a few feet away. If you are weighing one, the questions worth asking are about build quality, not the badge.
Short answer: a strong copy of this reference gets the 42 mm proportions, the crystal, the dial layout and the strap or bracelet fit reasonably close. It will not match the movement, the crown action or the water resistance, and IWC will never service it. Judge the watch on your wrist, not on the marketing grade the seller assigns it.
What the reference actually is
The authentic watch is a steel diver with a sapphire crystal, applied indices filled with luminous compound, a screw-down crown, and a bezel system designed so the dive scale sits under the glass and the outer ring does the turning. It carries a manufacture automatic movement with a multi-day power reserve, and it is rated for serious depth. An authentic example costs thousands of dollars, which explains why the search term exists in the first place.
What "first copy" means in practice
There is no agreed grading standard. Sellers move between labels like AAA, mirror, 1:1 and first copy depending on what sounds best that month, and the same factory output can appear under three different names. Prices for this reference typically land between roughly $150 and $600, and the spread reflects materials, movement choice and how much hand finishing went into the case. Photos are often of a sample unit, or of the real thing. Expect some drift between the QC images and the box that arrives.
Details I would inspect first
- Case measurements: ask for caliper photos of diameter, thickness and lug-to-lug. Eyeballing a listing photo tells you nothing.
- Crystal: should be sapphire with anti-reflective coating. Mineral glass or single-sided coating looks milky at an angle.
- Bezel ring: firm detents, no backplay, and the triangle lined up at 12 when it clicks home.
- Dial: index alignment, date window position, font weight, and how clean the printing looks under a loupe.
- Crown: smooth threads, no cross-threading, signed where the original is signed.
- Bracelet or rubber: end link fit, clasp engraving depth, and whether the rubber feels supple or like a pencil eraser.
- Weight: if it comes in well under a comparable steel watch, something hollow or plated is hiding inside.
- Movement: seconds sweep, date flip timing, winding feel, rotor noise. This is where most copies confess.
Where copies miss the mark
Movements are the biggest gap. Most copies run a Miyota, a Seiko instrument, or a decorated Chinese automatic, none of which behave like the manufacture calibre. Finishing is second: look at the transition between brushed and polished surfaces on the lugs and the sharpness of the chamfers. Engraving depth on the caseback is usually shallow. Lume is third, bright for ten minutes and gone by morning on cheap builds.
Money, service and resale
Budget for the watch being disposable. Independent watchmakers may decline to work on a counterfeit, parts are not catalogued, and no brand service centre will touch it. Resale value is close to zero, and sellers vanish. Treat the purchase as a one-way cost, not an asset.
Legal and practical caveats
Counterfeit watches are illegal to import into the United States, and customs authorities seize them and can assess penalties. Selling them is trademark infringement. Water resistance is a claim, not a guarantee, so keep it out of the pool. None of this is a reason to skip the checks above, but it belongs in the decision.
Before you pay
- Get real photos of the exact unit, not stock images.
- Confirm the movement type in writing.
- Check the return window and who pays return shipping.
- Pay with a method that offers dispute protection.
- Accept that no copy is 1:1, no matter what the listing says.