A replica IW323704 is a third-party copy of IWC's Ingenieur Automatic, a steel sports watch built around a five-screw bezel and an integrated-look bracelet. Copies span a wide range, from crude cast cases with painted dials to machined examples running Swiss or Japanese automatics. Judge one on case finishing, bezel screw execution, dial print, bracelet fit, and movement type, in that order.
What the IW323704 reference is
IWC launched the Ingenieur Automatic in the mid-2000s as a modern reading of the 1970s Ingenieur SL. The watch uses a stainless steel case in the low 40 mm range, a soft-iron inner cage for magnetic resistance, roughly 120 m of water resistance, and a screw-down crown. Five recessed screws sit in the bezel, and that detail is the first thing a copy has to get right. Early production ran IWC's in-house calibre 80111 family; later batches used other movements. Confirm the dial variant and bracelet style against IWC's reference documentation before you compare any copy.
Where the quality difference shows up
Case finishing separates the tiers more than any other factor. Good examples show brushed flanks with crisp polished bevels that catch light along a straight line. Weak examples have soft edges, uneven brushing, and a bezel that sits proud of the case.
The bezel screws are the tell. On the original they are recessed, functional, and aligned to a consistent depth. On a cheap copy they are glued-in heads, stamped slots, or screws set at different heights. Ask for macro photos from three angles before you commit.
Dial work matters next. Look for sharp printing with correct font weight, applied markers with proper bevels, and a date wheel with the right numeral shape. Bracelet fit is the last check: end links should meet the case with tight, even gaps, and the links should use screwed pins rather than friction pins.
How to evaluate a copy, step by step
- Ask the seller to confirm which reference variant is being copied, including dial color and bracelet type.
- Request in-hand photos of the bezel from straight on, from 45 degrees, and from the side.
- Compare screw depth and slot alignment across all five screws in those photos.
- Ask for a macro shot of the dial print and the date window at magnification.
- Confirm the case diameter and thickness with calipers or a seller measurement, then compare to the published reference figures.
- Ask which movement is installed and whether it is Swiss, Japanese, or an Asian clone.
- Verify the bracelet uses screwed links and check the end-link gap in a wrist shot.
- Ask whether the crown threads smoothly and what water resistance the seller actually claims.
- Get the return window and warranty terms in writing before payment.
- Set aside a servicing budget, since most copies arrive without a regulated movement.
Movement options you will see
Most copies use one of three movements: an Asian clone of the ETA 2824, a Swiss ETA 2824 or Sellita SW200, or a Miyota 9015. Swiss and Sellita movements cost more and are easier to service at a local watchmaker. Miyota units are reliable and thin, which suits the Ingenieur case. Treat any listing that will not name the movement as a pass.
Red flags to screen out
- Factory stock images used in place of photos of the actual watch.
- No movement disclosure, or a vague answer like "high grade automatic."
- Prices far below the rest of the market for the same specification.
- No return window, or terms sent only by chat message.
- Sellers who cannot state the reference number they are copying.
Care after delivery
Have a watchmaker check movement regulation and caseback sealing in the first month. Keep the watch away from hot water and steam, rinse the bracelet with mild soap and a soft brush, and dry it fully before storing. Do not assume the magnetic cage matches the original, so keep the watch clear of speakers and magnetic clasps. A service every four to six years keeps a decent copy running well.