Why this is not a buying guide
A replica of IWC reference IW329135 is a counterfeit. It copies a registered trademark and a protected design. Importing or selling one is illegal in the United States under 15 U.S.C. 1114 and 19 U.S.C. 1526. U.S. Customs and Border Protection seizes these shipments at the border. A buyer can lose both the money and the watch.
I do not write copy that helps sell counterfeit watches. That covers product guides, side-by-side comparisons, and keyword pages built around fake reference numbers.
What is verifiable about the reference
IWC Schaffhausen builds the Aquatimer line. Public records for the exact number IW329135 are thin. I could not confirm case size, movement caliber, or release year from a primary source. Printing those figures without a source would be guesswork, and guesswork is what most replica listings run on.
Steps a buyer can take
- Buy from an IWC authorized retailer.
- Buy secondhand from a dealer that supplies service records.
- Check the IWC site for the current catalog and reference list.
- Ask a watchmaker to inspect any private sale before payment.
If you need the real reference number for a specific Aquatimer model, the IWC catalog is the source of record. I cannot confirm IW329135 as a valid number, and I will not describe its counterfeit copies.