A fake IW371445 is a counterfeit copy of the IWC Portugieser Chronograph reference IW371445, a stainless steel, two-register chronograph from IWC's Portugieser line. Replicas carry the same reference number and a similar layout, but they differ from the original in the movement, dial printing, case finishing, and the small details a watchmaker checks first.
What the IW371445 actually is
IWC assigns each watch a reference number that identifies case material, dial variant, and strap or bracelet. The 3714 family is the Portugieser Chronograph: a round case in the low 40 mm range, a slim bezel, applied numerals and indices, and two subdials for chronograph minutes and running seconds. The IW371445 sits inside that family, so most of what applies to the 3714 series applies to this reference as well.
Because the design is simple and classic, it reads correctly at a glance more easily than a complicated watch would. That is the main reason this reference turns up so often in the replica market, including listings described as a 1:1 super clone.
Why counterfeiters target this reference
- A clean, symmetrical dial with no tourbillon, perpetual calendar, or other feature that is genuinely hard to imitate.
- A chronograph layout that inexpensive quartz or modified automatic movements can copy on the surface.
- Strong brand recognition, which makes a convincing copy easier to pass along.
Where fake IW371445 watches usually fall short
Replicas improve every year, so no single detail proves a watch is genuine. Look at several areas together.
- Subdial spacing: on many copies the subdials sit slightly too far apart or too close, because the base movement has different geometry from the original chronograph caliber.
- Dial printing: text can look heavy, uneven, or soft under a loupe. Genuine printing is crisp and consistent.
- Hands and indices: finish, polishing, and lume application are frequent weak points. Budget copies show rough edges or uneven color.
- Case finishing: brushed and polished surfaces should meet on a clean line. On fakes the transition is often soft or wavy.
- Chronograph feel: pushers on a real chronograph engage with a defined click. On copies they can feel mushy, and the seconds hand may stutter or fail to reset to zero.
- Caseback engraving: reference numbers, serial numbers, and engraving depth are often wrong or inconsistent with the watch's dial and case material.
How to check a watch you are considering
- Compare the reference number on the caseback with the dial layout and case material. A mismatch is a red flag.
- Ask for clear macro photos of the dial, case flanks, and caseback before any money changes hands.
- Have a watchmaker open the case. A movement photo settles most questions in minutes.
- Request service history or paperwork from an authorized dealer where possible.
- Treat price as a signal. A steep discount on a current-production Portugieser usually means something is wrong.
Legal and practical notes
Counterfeit watches are illegal to sell as genuine in the United States and most other markets, and buying one knowingly carries its own risk: no manufacturer warranty, no service support, and little recourse if the watch stops. If you own a watch you suspect is a fake IW371445, an independent watchmaker can confirm it by inspecting the movement and comparing the engraving with IWC's published reference data.