Short answer
IW323797 is a six-digit reference in IWC's 323x block. IWC reference numbers carry the prefix "IW" plus six digits, so the format fits. IWC's published catalogs do not list IW323797 as a current model. A seller offering a "fake IW323797" is copying a watch whose original reference you should confirm first. Ask for the caseback photo before you pay.
Why the reference number comes first
Replica sellers reuse numbers from real catalogs. A number that does not match a real case back, dial print, and movement code is a sign the listing was copied from another model. IWC has used the 323x block for Aquatimer cases. Case sizes in that block run 42 mm to 44 mm. If a listing shows a 40 mm case with a 323797 number, the parts do not match the number.
Check the caseback
- Reference number: six digits, engraved on the caseback ring or between the lugs.
- Serial number: seven to eight digits, separate from the reference.
- Case material code: steel, titanium, and gold use different codes.
- Water resistance: a number plus "bar" or "m".
Replica casebacks engrave the reference and the serial in the same font weight. On a genuine IWC the two numbers are cut in one pass.
Movement
IWC uses in-house calibers in the 3200 and 82000 families for this case size. A replica at USD 200 to USD 400 holds a Chinese or Japanese movement. Ask for a photo of the balance wheel and the rotor. A rotor engraved with a caliber number that does not match the caseback reference is a mismatch.
Price signals
Genuine IWC Aquatimer models have traded between USD 3,000 and USD 6,000 on the secondary market since 2020. A listing at USD 150 is not a discounted IWC. Replica wholesale pricing sits at USD 80 to USD 350, set by the movement and the case finish. If a seller quotes a price between those two ranges, ask which parts are original.
Seller checks
- Ask for a timestamped photo of the caseback and the crown.
- Ask for the reference and the serial in writing.
- Check the reference against IWC's site or a reference database.
- Pay with a method that allows a chargeback.
What is not known
Public IWC catalogs do not confirm that IW323797 was produced. Treat the number as unverified until a caseback photo matches it. If the seller cannot supply that photo, the listing stays unverified.