The short answer: the fake IW323793 worth considering is a high grade first copy with a 1:1 case profile, a smooth sweeping automatic movement, and dial printing that holds up at arm's length. Cheap versions fail on case finishing and printing long before they fail anywhere else. This guide judges candidates on four checks: case and bracelet finishing, dial and hand accuracy, movement behavior, and price sanity against the real IWC market.

One thing to settle first. IW323793 is an IWC reference number, not a model name. The digits after the family code mark the dial and strap variant, so two watches that look different can sit one digit apart. A seller who writes the reference loosely, or drops a digit, is usually working from a photo rather than a watch they handled.

Check 1: Case and bracelet finishing

Case work is where a first copy either earns its money or gives itself away. Real IWC construction keeps sharp borders between brushed flats and polished flanks, and those borders survive years of wear.

  • Good signs: brushed flats with a straight grain, polished bevels that run in an even line along the case flank, lug edges that stay crisp.
  • Bad signs: rounded lug tips where brushing bleeds into polish, screw heads sitting proud of the surface with off center slots, end links that rattle or sit below the lug line.

Run a fingernail across the transition between brushed and polished surfaces. On a decent copy you feel a step. On a poor one you feel nothing, because the whole case was buffed into one soft blob.

Check 2: Dial, hands, and date

The dial is the part you actually look at, so it carries the most risk in a first copy.

  • Good signs: applied markers with sharp edges and level lume fill, printed text with clean serifs, hands that taper to a point, a date wheel that sits square in the window.
  • Bad signs: markers that are printed instead of applied, lume that spills over an index, a date numeral that drifts toward one corner of the window, hands a shade too thick or too short.

Compare a photo of your candidate against a catalog image of the reference at the same angle, not against another replica listing. Replica listings copy each other's flaws.

Check 3: Movement and winding feel

Movement quality decides whether the watch survives daily wear or becomes a drawer item.

  • Good signs: hacking seconds, hand winding with light resistance, a seconds hand that sweeps at six to eight beats per second, a rotor that turns quietly and wobbles with a little inertia.
  • Bad signs: a stuttering seconds hand, a rotor that spins like a fidget spinner with no weight to it, loud winding, or any caseback that opens onto a plain undecorated plate while the genuine reference is a solid back watch.

Ask for a video with sound. Listen for the rotor rather than the ticking. Ask who services the movement and how long a service takes, because a first copy has no manufacturer service channel behind it.

Check 4: Caseback engraving and reference code

Most first copy listings photograph the front and skip the back. That is not an accident. Engraving depth, font weight, and the exact reference string are easy to fake poorly and hard to fake well. Ask for a clear macro shot of the caseback before you commit, and check that every digit of IW323793 matches what the IWC catalog shows for that variant.

Check 5: Price and provenance

This check catches more buyers than any other. Genuine IWC references of this kind trade at a firm floor on the secondary market, so a watch described as genuine and priced far under that floor is not a bargain. It is a first copy sold with a false description, or it has a story that does not survive three questions.

  • Good signs: a seller who states plainly that the watch is a first copy, shows the movement, and names the grade.
  • Bad signs: stock photos only, pressure to pay outside a protected method, a reference number quoted with a digit missing, or a "genuine" claim at a price no genuine example reaches.

First copy versus genuine: the honest trade

  • First copy pros: a fraction of the genuine price, the same silhouette on the wrist, no waiting list, and less worry when you travel or swim.
  • First copy cons: no factory warranty, no service network, uncertain water resistance, no resale value, and legal exposure in many jurisdictions.
  • Genuine pros: service history, documented provenance, resale value, and finishes that hold up under close inspection.
  • Genuine cons: real money, and a purchase that usually involves waiting or hunting.

Who should buy what

If you want the look for everyday wear and you accept that the watch is a copy, buy the best finished first copy you can inspect in person, and treat water resistance as unproven. If you care about service, resale, or provenance, put the money toward the genuine reference and skip this category entirely. If you only need to identify whether a watch offered to you is a copy, work through the checklist below and stop at the first failure.

Pre-purchase checklist

  1. Confirm the full reference string, digits and all, against the IWC catalog entry for that variant.
  2. Request a macro photo of the caseback engraving and a video with sound of the movement running.
  3. Compare dial printing and hand shape against a catalog image, not another replica listing.
  4. Check the brushed and polished transitions with a fingernail.
  5. Confirm the movement type, who services it, and what a service costs.
  6. Price the genuine reference on a reputable marketplace and walk away from anything far below that floor.
  7. Pay through a method that leaves you recourse if the watch does not match the listing.