Quick answer
Replica IW371460 v5 is a counterfeit copy of an IWC Portugieser Chronograph, sold as the fifth version of that copy. The v5 tag is a seller label. No factory standard defines it and no independent body verifies it. In practice the tag means the seller claims a change from the v4 batch: dial print, case finish, hand shape, crystal, or movement. No replica matches a genuine IWC part for part. In the US, importing or selling a watch that carries a counterfeit IWC mark is illegal.
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The reference behind the copy
IW371460 falls in the IWC Portugieser Chronograph IW3714 group. IWC lists that model at 40.9 mm in steel, 30 m water resistance, and a dial layout with small seconds at 6 o'clock and a 30 minute counter at 12 o'clock. The genuine calibre 79350 is a Valjoux 7750 base, 28,800 vph, 44 hour power reserve.
Dial and strap suffixes inside the IW3714 group differ by market and year. The exact dial color for the 460 suffix needs a photo of the caseback engraving. Treat a seller spec sheet as unverified until you see that photo.
What the v5 label covers
- Dial: index height, print thickness, and the finish on the applied numerals.
- Case: lug shape, bezel polish, and caseback engraving depth.
- Movement: a stock A7750, a modified A7750 with a seconds transfer gear, or a quartz substitute.
- Crystal: flat sapphire, domed sapphire, or coated mineral glass.
- Hands: length, curvature, and pinion height at the center stack.
Checks before you buy
- Ask for a macro photo of the caseback. The reference number and the movement stamp are the two lines that separate one batch from another.
- Ask which movement sits inside. A stock A7750 puts running seconds at 9 o'clock. The Portugieser layout puts them at 6 o'clock, so the copy needs a transfer gear or a different base.
- Ask if the chronograph hands reset to zero from the pusher. A quartz copy snaps. A mechanical copy sweeps.
- Ask if the watch was pressure tested. Most sellers ship without a test, and a 30 m rating on a replica is a claim, not a measurement.
- Ask about service. The A7750 needs a service interval near 5 years. Most sellers offer no warranty and no parts.
Legal and practical limits
US law covers this class of goods under 18 U.S.C. 2320, which sets criminal penalties for trafficking in counterfeit goods. Customs officers seize counterfeit watches at ports of entry, and the buyer loses the payment. Resale is limited because no buyer can verify the movement history. Water resistance claims on replicas are unverified in most listings.
The genuine Portugieser Chronograph sells near 8,000 USD in steel. A replica at a few hundred dollars is a different product with a different service life, not a discount on the same object.