Short Answer
IW323745 is an IWC reference number that sits in the Ingenieur block of the catalog. A replica IW323745 is a third-party copy of that watch, built from aftermarket case parts and a non-IWC movement. Copies come in tiers: low-grade quartz builds, mid-tier pieces with a Japanese or Chinese automatic movement, and high-end builds that copy case, dial, and bracelet measurements close to the genuine piece. Because the reference is not a famous collector model, the copy market for it is small and quality varies a lot. Confirm the reference exists on IWC's own site before you pay anyone, since some listings use garbled or invented numbers.
Before You Start
- A confirmed spec sheet for the genuine watch: case diameter, thickness, lug width, dial layout, movement type.
- A budget split into three tiers, entry, mid, and high.
- Knowledge of the import rules where you live. Counterfeit watches can be seized and destroyed at the border, and in the US that falls under trademark enforcement handled by Customs and Border Protection.
- A seller you can still reach after the sale, not a one-off listing on a marketplace.
How to Evaluate One
- Open IWC's site or an authorized dealer page and confirm that IW323745 is a real reference with a real spec sheet.
- Write down the genuine numbers: case diameter, thickness, lug width, bracelet width, movement caliber, and power reserve.
- Collect photos of the genuine watch from owner forums so you have a visual baseline for dial print, hand shape, and crown logo.
- Ask the seller for a build sheet listing case material, crystal type, movement model, and water resistance rating.
- Compare that build sheet against the genuine specs and note every gap in size or material.
- Request QC photos of the actual unit, not catalog renders, before payment clears.
- Check the dial in those photos: markers, text weight, date font, and hand stack.
- Check the caseback engraving and reference stamp against the genuine layout.
- Confirm the shipping method and what happens if customs holds the parcel.
- Pay with a method that gives you some recourse, and skip sellers who demand wire transfers or gift cards.
Case and Dial Checks
- Case diameter within half a millimeter of the genuine spec.
- Crown logo shape and engraving depth.
- Dial text thickness and spacing, since this is the easiest tell.
- Date window position and date wheel font.
- Bracelet link screws and clasp stamping.
- Weight, because a light case usually means a cheaper alloy.
Seller Red Flags
- Stock photos only, with no QC images offered.
- A price far below the normal range for that tier.
- A domain registered in the last few months.
- No tracking number, or shipping updates that stop at the origin country.
- Pressure to pay within a few hours.
- No stated policy on seized parcels or returns.
After the Watch Arrives
- Photograph the parcel and the watch before you wear it.
- Time the movement over 24 hours and compare it to the seller's claim.
- Test the crown, date change, and clasp action for stiffness or play.
- Have a local watchmaker check the movement and re-grease the gaskets.
- Keep the watch dry until the water resistance has been pressure tested.
Legal Note
Counterfeit watches are illegal to import in many countries, including the United States. Seized parcels are destroyed and you have no refund path. Treat that risk as part of the cost before you order anything.