Short answer
IW329025 sits in the IWC Aquatimer Automatic group: a 42 mm steel dive watch with an internal rotating bezel and a 300 m water resistance rating. Replica versions are made in Chinese factories and sell for about $200 to $450. They copy the case shape, dial layout, and hands. They do not match the original movement, the original water resistance, or the original finishing. Treat one as a look-alike, not as a tool watch.
What the original reference is
The IW3290 family covers the Aquatimer Automatic 42 mm. Stainless steel case, 42 mm across, about 14 mm thick. Water resistance 300 m. Bezel turns inside the crystal and is driven by a second crown at 4 o'clock. Sapphire crystal with anti-reflective coating on both faces. Movement is the IWC calibre 30120, built on a Sellita SW300-1 base: automatic, 25 jewels, 28,800 vibrations per hour, 42-hour power reserve. Date window at 3 o'clock. Version details such as dial color, strap type, and edition markings change from one reference number to the next. Confirm the exact IW329025 configuration against IWC's own records before you compare a replica to it.
Replica build: what sits inside
- Movement. Most builds use a Miyota 9015 or a Seiko NH35. Some use a clone of the ETA 2892 or the Sellita SW300. The Miyota 9015 beats at 28,800 vph. The NH35 beats at 21,600 vph, so the second hand sweeps slower than the original.
- Case. 316L steel in most builds, 904L in a few. Diameter copies 42 mm. Thickness runs 14 mm to 15 mm.
- Crystal. Sapphire on the top tiers, mineral glass on the cheap tiers.
- Bezel. Internal, driven by the 4 o'clock crown. Action ranges from smooth to gritty. The gasket is the weak point.
- Lume. Super-LumiNova on better builds, generic phosphorescent paint on cheaper ones.
- Water resistance. Not tested to 300 m. Most replicas leave the factory without a pressure test. Do not swim or dive with one.
Checks before you pay
- Ask for the movement name and the beat rate. A 21,600 vph movement is a tell.
- Ask for a 10x photo of the dial. Check the date font, the date window position, and the spacing of the text.
- Check caseback engraving depth. Laser etching is shallow and flat. Stamping has edges.
- Ask for the case thickness measured with calipers. Anything past 14.5 mm sits high on the wrist.
- Confirm the crown thread. Cross-threading is the most common failure on replica dive watches.
- Ask about the strap. Rubber compound, buckle finish, and spring bar quality change from batch to batch.
Price bands
A 42 mm replica diver with a Miyota 9015 lands between $200 and $450. Under $150 you get mineral glass and a low-beat movement. Past $600 you pay for a name that never appeared on the original.
Legal and service facts
In the United States, importing a counterfeit watch is prohibited under 19 U.S.C. § 1526. U.S. Customs and Border Protection can seize the shipment, and the buyer absorbs the loss. IWC will not service a counterfeit. No replica carries a serial number that exists in IWC's records. Resale value is near zero.
What cannot be verified
No seller can prove a 300 m rating on a replica without a pressure test report, and few provide one. No replica dial, case, or bracelet comes from the same supplier as the original. Claims about "same factory" or "1:1" are marketing terms with no standard behind them.