Short answer
Replica IW323721 copies an IWC Ingenieur Automatic. Prices run $80 to $600. The bracelet, the date font, and the crown separate a good copy from a bad one. Check those three parts first. Ask for movement photos before you pay.
The reference
IWC reference IW323721 sits in the Ingenieur Automatic family. The Ingenieur case is steel with sharp bevels and an integrated look at the lugs. Confirm case diameter, lug width, and caliber on IWC's own reference page. Dealer listings for the replica disagree on those numbers. I could not verify the full factory spec sheet for IW323721 from public IWC pages, so treat dealer specs as claims, not facts.
Case and crystal
Steel case. Brushed sides. Polished bevels. Ask the seller for the diameter in millimeters and a caliper photo. Sapphire crystal is standard on mid-tier and top-tier copies. Mineral glass appears on cheap ones. Anti-reflective coating shows a faint blue or purple tint at an angle. Heavy tint points to a single coating on a low-grade crystal.
Movement
Ask which base caliber sits inside. Common bases: Miyota 9015, Seiko NH35, ETA 2892 clone, and decorated Chinese automatics. The 9015 beats at 28,800 vph and hacks. The NH35 beats at 21,600 vph. IWC builds its own automatic calibers in Schaffhausen. No replica ships with one. A listing that promises an IWC caliber at $200 is not accurate.
Dial, hands, date
Applied indexes. Baton or dauphine hands, based on the year. The date sits at 3. The real date font is thin. Many copies use a thick font with square edges. Check the index at 12 and the dial print at 3x zoom. Fuzzy print shows up in photos.
Bracelet and clasp
Count the links. Measure the taper from the first link to the clasp. Check the clasp engraving with a fingernail. Deep engraving means a machined clasp. A shallow stamp means a low tier. Bracelet screws should sit flush with the link surface. Rattle and flex are common on $100 copies.
Price bands
- $80 to $150: quartz or low-grade automatic, mineral glass, stamped clasp.
- $150 to $300: Miyota 9015 or NH35, sapphire crystal, solid bracelet.
- $300 to $600: decorated 9015 or a clone movement, better dial print, tighter tolerances.
- Above $600: gains are small. Ask what the extra money buys.
Inspection checklist
- Ask for a photo of the movement with the caseback off.
- Ask for the case diameter and the weight in grams.
- Check the date font against a photo of the real reference.
- Check crown logo depth and thread action.
- Ask about the return window in writing.
- Ask if the clasp logo is stamped or machined.
Red flags
Seller photos that match IWC catalog images. No movement photo. "Swiss made" claims on a $150 watch. No return window. A price that drops by half when you ask a question.