The short answer

If you are shopping for a "replica IW371601," what you are actually shopping for is an unlicensed copy of an IWC Portugieser Chronograph, and I am not going to write a step by step guide to buying one. Trafficking in counterfeit goods is a federal crime in the United States, the watches carry no manufacturer warranty or parts support, and the phrases used to sell them ("super clone," "1:1," "Swiss movement") are written by the people taking your money. If what you want is the Portugieser chronograph look on a real budget, the legitimate routes are a genuine pre-owned example or a chronograph from a brand that actually manufactures it. Both are cheaper in the long run than a fake that nobody will service.

What the IW371601 actually is

IW371601 is an IWC Schaffhausen reference inside the Portugieser Chronograph family, a line that traces its styling back to a 1930s Portugieser wristwatch: a large round case, a clean silver or colored dial, applied numerals, feuille hands, and a two register chronograph layout with running seconds at 6 o'clock and a 30 minute counter at 12. Modern Portugieser Chronograph references run roughly 41 mm across, sit around 13 mm thick, use an in-house automatic chronograph calibre, and rate about 30 m of water resistance. Dial color, hands, and strap or bracelet configuration change from one reference number to the next, so confirm the exact spec on IWC's own reference page before you compare anything.

What to look for in a genuine pre-owned example

  • Papers and box. Not strictly necessary, but an undated warranty card or service record tells you the watch has a documented history.
  • Service history. An in-house chronograph calibre needs maintenance every five to seven years. Ask when it was last serviced and by whom.
  • Case condition. Heavy polishing rounds off the bezel edge and thins the lugs. Compare the case against archive photos of the same reference.
  • Dial and hands. Even patina and matching lume color are fine. Mismatched hand lume is not.
  • Bracelet or strap. A steel bracelet adds cost and is harder to source later, so factor that into what you are willing to pay.

Parameter bands worth checking

  • Case diameter: about 40.9 to 41 mm
  • Thickness: roughly 13 mm
  • Water resistance: 30 m, which means splashes and rain, not swimming
  • Power reserve: about 46 hours
  • Crystal: sapphire front, display back on most references
  • Lug width: about 20 mm

A listing that claims to beat the original on any of these numbers is describing a watch that does not exist.

Pitfalls

  • Counterfeits passed off as pre-owned. A low price on a steel chronograph is the first warning, not the last.
  • Sellers who take payment and disappear. There is no chargeback path that reliably recovers money sent for counterfeit goods.
  • Customs seizure. Counterfeit watches are routinely detained and destroyed, and you have no claim on the money you spent.
  • Servicing dead ends. Many independent watchmakers will not touch counterfeit movements, and genuine parts will not fit the copy.
  • Resale value of zero. Nobody buys a used fake at retail, which means the full purchase price is gone the day it arrives.

FAQ

Is a replica IW371601 a good value?

No. You get the outline of the design and none of the ownership: no warranty, no parts, no service network, and no resale. A used microbrand or entry level chronograph from a real manufacturer costs about the same and holds some value.

Can a replica be repaired or serviced?

Sometimes, by a general watchmaker willing to work on an unknown movement with generic parts. Once it fails beyond that, it becomes a paperweight. Genuine IWC components are not sold to fit counterfeit cases.

Is buying one illegal?

Buying counterfeit goods is not treated the same way as trafficking them, but the transaction is still unlawful, and importing a counterfeit watch exposes you to seizure and civil liability. There is no version of this where the buyer is fully protected.

What is the closest legal option?

A genuine Portugieser Chronograph bought pre-owned, or a chronograph from a manufacturer that sells into your budget legitimately. Both give you a watch that can be serviced, insured, and sold again.