Answer

A fake IW323732 is a counterfeit watch sold under an IWC reference number. Replica IWC dive watches sell for about $150 to $600. A genuine IWC with the same reference sells used for several thousand dollars. The price gap is the first signal. The second signal is paperwork. IWC watches ship with a serial number on the caseback that matches the warranty card and IWC service records.

What the reference number means

IWC writes reference numbers as IW plus six digits. Dealers sometimes add a hyphen, so IW323732 becomes IW3237-32. The 3237 block sits in the IWC Aquatimer dive family. IWC does not publish a complete public archive of retired references, so confirm the case, dial, and strap code with IWC or an authorized dealer before you treat any number as correct. Some listings that use the term "iw323732" do not match a catalogued IWC release.

Where replicas fail

  • Caseback: check engraving depth, font weight, and letter spacing. Genuine IWC engraving is cut into the metal. Replica engraving is shallow or laser-printed.
  • Serial number: replicas reuse the same serial across a batch. A run of identical serials is a counterfeit marker.
  • Movement: IWC dive models from this era used calibre 30110, based on the ETA 2892-A2. Replicas use Chinese clones or undecorated movements. A watchmaker can identify the base in minutes.
  • Water resistance: genuine Aquatimer 2000 cases carry a 2000 m rating. Replica cases are not pressure tested. Gaskets fail.
  • Dial print: text on a replica dial is thicker. Indices sit off-centre. Lume edges are uneven.
  • Crown and bezel: action is rough or loose. Click springs are lighter.

How to verify a watch

  1. Read the caseback with a loupe. Record the reference and serial numbers.
  2. Match the serial against the warranty card, box label, and any IWC service receipt.
  3. Ask an IWC boutique or authorized dealer to confirm the serial in the IWC system.
  4. Have a watchmaker open the case and photograph the movement.
  5. Pressure test the case if the watch will see water.
  6. Compare photos against sold listings for the same reference.

Price and legal notes

Pre-owned prices for IWC Aquatimer models range from about $2,500 to $6,000, based on reference, condition, and box and papers. Replica prices run from $150 to $600. Counterfeit watches are illegal to import and sell in the United States under 18 U.S.C. 2320. U.S. Customs and Border Protection can seize shipments. A fake carries no service support, no parts supply, and no resale value.