The short answer
IW329006 sits in IWC's Aquatimer Automatic 42 family, a steel dive watch known for an inner rotating dive scale instead of a marked outer bezel. Replica versions show up in three rough tiers: budget builds under $100, mid-tier builds around $150 to $280, and top-tier reps at $350 and up. Buy the mid tier or better. The reason is simple: the inner dive scale has to actually rotate when you turn the outer bezel. On cheap reps it is printed on a fixed ring, and that is the first thing anyone who knows the watch will notice.
What the genuine watch does
IWC built the Aquatimer Automatic 42 around its SafeDive system. Turning the outer bezel drives an internal scale under the crystal, and a clutch lets it move one direction only. The case is stainless steel at roughly 42mm across, water resistant to 300m, with a screw-down crown, applied indices, and a soft-iron inner cage on some production runs for magnetic protection. Dial variants across the IW3290 block mostly differ in color and strap pairing, so the dial you order should match the reference you are claiming. Movement specs shifted over the years, so check the production year before you compare specs line by line.
Where replicas give themselves away
Bezel and dive scale
Ask the seller for a video of the bezel turning. The inner scale must move smoothly, stop cleanly at the 12 position, and line up with the outer marker. Gritty action, wobble, or a scale that sits crooked under the crystal are common on budget builds.
Dial, hands, and lume
I look at three things: the print weight of the brand text, the spelling of Schaffhausen, and the date font. Sloppy reps use a generic date wheel with the wrong numeral shape. Lume is the other tell. Cheap reps glow green and fade in an hour; a good rep uses Super-LumiNova-style compound that glows blue-white and holds for hours.
Case, crown, and caseback
Check crown thread engagement. A crown that grinds or bottoms out early will not seal. Caseback engraving should be deep and crisp, not laser-etched shallow. Lug width should be a true 22mm so aftermarket straps drop in without trimming.
Movement
Most mid-tier reps run a Miyota 9015 or a decorated Seagull automatic. Top-tier builds use a Swiss or Japanese clone with better finishing and a smoother sweep. A 9015 is thin, reliable, and easy for any watchmaker to service, which matters more than the decoration you cannot see.
Strap and clasp
The rubber strap should feel supple, not like a pencil eraser. On folding clasps, check that the pushers release evenly and that the safety catch snaps shut.
QC checklist before you pay
- Video of the bezel turning, full rotation.
- Date centered in the window at three or four different dates.
- Crown screws down fully with no gap.
- Hands aligned at 12 with the minute hand on the marker.
- Lume shot in a dark room, then again 30 minutes later.
- Caseback engraving photo at an angle, not straight on.
- Confirmation of actual lug width and case thickness.
Price tiers, plainly
Under $100 you get a quartz or low-grade auto, a fixed inner scale, and hollow-feeling steel. Between $150 and $280 you get a working dive scale, decent lume, and a serviceable movement, which is the sweet spot for most buyers. Above $350 you are paying for case finishing, a better crystal with proper anti-reflective coating, and tighter tolerances. The jump from tier two to tier three is real, but it is smaller than the jump from tier one to tier two.
Wearing it
At 42mm and just over 14mm thick, this is a wrist presence watch. It wears best on a 7-inch wrist or larger. On smaller wrists the thickness is what you notice, not the diameter. If you plan to swim with a replica, have a watchmaker pressure test it and replace the gaskets first. Factory seals on reps are unverified, and no seller should tell you otherwise.
FAQ
Is a replica IW329006 worth it?
Yes, if you buy mid-tier or above and care about the bezel working. Aquatimer reps are made in smaller numbers than the usual diver clones, so availability moves around. If a seller has unlimited stock of every dial color at a bargain price, that is a warning, not a deal.
How do I spot a bad one in photos?
Look at the inner scale. If the numbers look flat printed with no depth and the outer bezel has no visible seam or clutch feel described, it is likely fixed. Ask directly.