Fake IW323762: The Short Answer
A fake IW323762 fails on the case back, the bracelet, or the dial print. Genuine IWC engraving is deep, crisp, and centered on the case back, with the reference and serial digits cut cleanly enough to read at 10x magnification. Copies show shallow acid-etched text that drifts off center and blurs under a loupe. If a seller will not show a matching warranty card and will not let a watchmaker open the case, treat the watch as a copy.
What the Reference Should Be
The IW323762 sits in the IWC Ingenieur family, a three-hand automatic with an integrated bracelet. IWC builds the Ingenieur line around magnetic protection, so most examples use a soft iron inner cage around the movement. IWC reuses case codes across dial colors, case metals, and limited runs, so confirm the exact variant of your example against an official record before you compare finishing details. Nail down the reference number, case metal, and bracelet type first, then judge the workmanship.
What You Need Before You Start
- A 10x jeweler's loupe or a macro lens
- Digital calipers and a small gram scale
- A timegrapher, or a watchmaker who owns one
- An official product image or a documented listing for the same reference
Step-by-Step Checks
- Photograph the case back from four angles under raking light.
- Compare the engraved reference and serial digits with a documented example of the same reference.
- Measure case diameter and thickness with calipers.
- Weigh the watch head with the bracelet removed.
- Run a fingertip along the bracelet edges and end links, feeling for burrs and gaps.
- Check the crown for engraving quality, click positions, hand winding feel, and hacking.
- Inspect dial text and applied markers with a 10x loupe, looking for fuzzy edges and uneven lume.
- Have a watchmaker open the case and review the movement finish, rotor engraving, and jewel settings.
- Place the watch on a timegrapher and record rate, amplitude, and beat error.
- Match the case serial to the warranty card, box label, and any service papers.
Where Copies Give Themselves Away
Replica cases tend to be thicker than the official figure because the movement inside needs the extra room. Bracelet end links on copies sit with visible gaps, and the screws take a cheap flat head instead of the correct slotted profile. Dial printing is the second weak point: the brand text sits a fraction high or low, and the applied markers do not line up with the rehaut ring. On the movement side, copies use generic rotors with light engraving and no perlage or Geneva stripes on the bridges.
US Legal Note
Selling or importing a counterfeit watch violates US trademark law, and Customs and Border Protection can seize shipments. Authorized service centers will not work on counterfeit cases, so a failed movement leaves you with no repair path and no resale value.
Bottom Line
Pay for written authentication before money changes hands. A watchmaker with IWC experience can confirm the case back, movement, and papers in under an hour, and that fee protects you from a five-figure mistake.