Replica IW371476: the short answer
A replica IW371476 is a copy of an IWC Portugieser Chronograph, and what you get depends almost entirely on which factory built it. Two-register chronographs are hard to fake well, because the subdial spacing is dictated by the movement underneath. If the seller cannot tell you what movement is inside, you are looking at a quartz watch with a decorative plate rather than a working chronograph. Ask that question first.
Verify the real reference before you compare anything. IWC's own product page lists the case diameter, thickness, crystal type, strap material and calibre for the exact reference. Numbers in the 3714 and 3716 families have changed over the years, so a watch advertised as IW371476 may actually be patterned on a different generation.
What 'first copy' usually means
In this market the phrase describes the top tier of copies: a stainless steel case, sapphire crystal, a mechanical chronograph movement, and a dial printed with the same fonts and layout as the original. Below that tier you find cheaper watches with mineral glass, a battery movement, and subdials that never move. The price gap between the tiers is large, and so is the visual gap once you hold both.
Details I check first
- Subdial spacing. On the genuine watch the chronograph minutes at 12 and the small seconds at 6 sit close to the centre. Copies built on a quartz base push them outward.
- Dial printing. Look at the IWC and SCHAFFHAUSEN text under a loupe. Thin, muddier lettering is the giveaway.
- Date window. Position and numeral shape matter. A date sitting too high or using a different font is easy to spot.
- Case finishing. Genuine cases have crisp transitions between brushed and polished surfaces. Copies round them off.
- Caseback engraving. Reference numbers, the display back and engraving depth are usually the weakest part.
- Strap and clasp. Alligator-textured leather and a folding clasp that feels flimsy are common.
Movement is the real dividing line
A mechanical copy usually runs a Chinese clone of the Valjoux 7750, the same base architecture IWC modified for the original. That matters, because the subdial layout then matches. A quartz copy cannot match it. If the seconds hand ticks once per second instead of sweeping, you are holding quartz. Also ask about power reserve and whether the chronograph resets cleanly to zero.
Questions to ask before paying
- Which movement, and how many jewels?
- Case diameter and thickness in millimetres?
- Sapphire or mineral crystal, front and back?
- Is the watch pressure tested, or just rated?
- What happens if it arrives not running?
What a copy does not give you
No replica carries a manufacturer warranty, and few watchmakers will happily service one. Water resistance is a claim rather than a guarantee, so keep it out of pools and showers. Resale value is close to zero. Customs can seize a shipment, and that risk sits with the buyer. If those tradeoffs matter to you, the honest advice is to save for the real thing or buy a well-made chronograph from another brand at the same price. If you only want the look on your wrist for a while, a top-tier copy gets you close from a metre away.