Short answer
A replica IW329097 is worth buying only if four things hold up: the case matches the genuine 42 mm Aquatimer profile, the internal rotating bezel moves with the correct detents from the 2 o'clock crown, the movement is named and serviceable, and the water resistance claim is backed by a real test. Most replicas of this reference get the dial right and the bezel wrong. The crown-driven inner bezel is the hardest part to copy, so test it first and decide after.
What the reference is
IW329097 belongs to the IWC Aquatimer Automatic family: a steel dive watch around 42 mm across, sapphire crystal, an internal rotating dive bezel operated by a second crown, and either a steel bracelet or a rubber strap depending on the variant. Confirm the exact dial color, caseback engraving and strap code against IWC's own catalog before you commit. Sellers routinely mix parts across the IW3290 line, and a mismatched caseback is the fastest way to spot a build assembled from whatever was in stock.
Inspection procedure
Work through these in order. Stop at any step that fails and ask the seller to explain.
- Ask the seller for the exact reference, case size, movement name and strap code in writing before payment.
- Compare the case profile to catalog photos: lugs should curve down toward the wrist, not sit flat and slab-sided.
- Operate the 2 o'clock crown through a full rotation. It should click at each marker with firm, even detents and no grinding.
- Check bezel alignment at 12. The triangle must center on the marker, not drift half a minute off.
- Inspect the dial under raking light: applied indices should sit level, lume should fill each marker evenly, and the date should sit square in its window.
- Turn the watch over and read the caseback engraving with a loupe. Lettering should be crisp and consistent in depth.
- Time it over 24 hours against a reference clock, then again over a week. Anything beyond about 15 seconds a day needs regulating.
- Ask directly whether the watch was pressure-tested, and by whom.
Movement
Three movement types show up in this reference: a decorated Asian automatic, a Swiss-pattern clone such as the 2824 family, and a genuine ETA or Sellita in the upper tier. Ask which one is inside and get a photo of the rotor and balance. A decorated rotor with no name on it is not a selling point. Also ask whether the movement has been regulated and whether the case is gasket-sealed.
Water resistance
A dive watch replica is the worst place to trust a printed number. Gaskets on low-tier builds are often dry or missing, and crown seals on the inner-bezel side are frequently overlooked. Treat any replica as splash-resistant at best until a watchmaker pressure-tests it. Under ISO 22810, a depth rating is a tested claim, not a label.
Price tiers
- Under about $150: usually quartz or a basic automatic, thin plating, rough bezel action.
- Around $250 to $450: solid mid tier, clone automatic, decent dial printing, bezel action varies widely.
- Above $500: best case finishing and bracelet feel, but the price is only justified by a named movement and a test report.
Red flags
- Seller refuses to name the movement.
- Photos are catalog renders rather than the actual watch.
- Bezel crown turns freely with no detents.
- Caseback engraving looks laser-etched and shallow.
- Claim of 300 m water resistance with no test documentation.
After purchase
Have a watchmaker open the case, inspect the gaskets, and regulate the movement within the first month. Replace dried seals before any contact with water. Keep the bracelet screws checked with a thread-locking compound if you swim or train in it.