What IW323712 Refers To
IW323712 is an IWC reference number in the Aquatimer line. Aquatimer is IWC's dive watch family. References in this range use steel cases, a rotating dive bezel, and a water resistance rating built for diving. IWC publishes case size, movement, and materials for each reference. Treat that page as the baseline. Seller photos do not replace it.
Signs of a Fake
- Case back engraving. Counterfeits show shallow cuts and wrong font. Genuine IWC engraving is deep and even. Reference and serial numbers sit on the case back.
- Movement. Fakes use unbranded or Asian clone movements. IWC Aquatimer automatics have used ETA-based calibres and IWC in-house calibres, depending on the year. Ask which calibre the seller claims, then confirm it with an IWC service center.
- Bezel action. A genuine dive bezel turns in defined clicks with no play. Many fakes turn loose or stick.
- Dial printing and lume. Text on fakes is thicker. Lume colour on the dial differs from the hands.
- Crystal. IWC fits sapphire with anti-reflective coating on both faces. Fakes use mineral glass or uncoated sapphire with visible glare.
- Bracelet and clasp. Stamped logos replace engraved logos. End link fit is loose.
How to Verify
- Photograph the case back. Send the reference and serial to an IWC service center. IWC holds records tied to serial numbers.
- Ask for a movement photo through the case back or a service invoice that names the calibre.
- Have a watchmaker who has handled IWC inspect the watch. A pressure test confirms gasket condition. It does not confirm the case is genuine.
- Compare case dimensions to IWC's published figure. A 0.5 mm difference flags a fake.
Price Signals
Counterfeit dive watches sell for a few hundred dollars or less. Pre-owned IWC Aquatimer Automatics on the secondary market list in the low thousands. A genuine reference sold near the counterfeit price is the main warning sign. A seller who cannot name the calibre or show a service record adds risk.
Limits of Any Guide
Some fakes copy the engraving and the dial well enough to pass a photo check. Only a physical inspection by a trained watchmaker, or confirmation from IWC, settles the question. A return window from the seller protects a buyer more than any checklist.