Short answer

A watch sold as a replica IW938993 is an aftermarket copy listed under an IWC-style reference format. The string does not match a current catalog entry, so treat it as a seller or factory code, not a manufacturer reference. Judge the watch on measurable details: case size and weight, movement type, dial printing, bracelet fit, and the seller's written return terms. Do not judge it on the model name alone.

Before you start

  • A budget ceiling that includes shipping, customs risk, and a first service.
  • The genuine reference you are comparing against, so proportions are clear.
  • Knowledge of your local rules on counterfeit goods. Importing them can lead to seizure and loss of the payment.

Inspection steps

  1. Ask the seller for exact case diameter, thickness, and lug width in millimeters, then compare those figures to the genuine reference.
  2. Request timestamped photos of the caseback engraving, including the reference string, so you can see font depth and alignment.
  3. Confirm the movement inside. Ask whether it is an Asian automatic, a Swiss Sellita-based unit, or a quartz copy, and note the stated service interval.
  4. Ask for macro photos of the dial at 3x to 5x. Check index alignment, lume fill edges, and print sharpness on the subdials.
  5. Request a photo of the bracelet end links seated against the case, plus the clasp marking, to spot gap and finish problems.
  6. Ask whether the watch was water-pressure tested and at what rating. Treat any claim without a test figure as unverified.
  7. Get the return window, restocking fee, and refund method in writing before payment.
  8. Pay with a method that offers chargeback protection, and keep the listing description and chat record.

Red flags

  • No macro photos, only stock renders.
  • A reference number that shifts between messages.
  • Claims of brand service or brand warranty on a replica.
  • Pressure to pay by wire or crypto with no refund path.
  • Weight quoted in vague terms instead of grams.

Ownership and legal realities

Replicas carry no manufacturer warranty and are not serviced by the brand. Resale value is low and unstable, and parts availability depends on the seller. Customs agencies in many countries seize counterfeit watches on import, and the buyer usually absorbs the loss. Trademark law treats these goods as infringing, so keep the purchase private, avoid reselling them as genuine, and never present one as an authentic piece. If authentication matters for a gift or an heirloom, buy the genuine reference instead.

How to decide

Compare two or three sellers on the same checklist. A seller who answers the movement, weight, and pressure-test questions with numbers is a better risk than one who answers with adjectives. If the answers stay vague after one follow-up, walk away.