Short Answer

A replica IW371694 is worth your money only when three things are right: case thickness, subdial depth, and the date wheel font. Miss any one of them and the watch reads as fake from arm's length, no loupe required. Everything else, from the strap to the packaging, can be replaced later. Those three cannot.

What the IW371694 Actually Is

The IW371694 sits in IWC's Portugieser Chronograph line, the 3716 generation that took over from the long-running 3714. The formula stayed familiar: a 41mm steel case, a bicompax dial with the 30-minute counter at 12 and small seconds at 6, a date at 3, and leaf-shaped hands over applied numerals.

What changed was the engine. IWC swapped in its own caliber 69355, a column-wheel automatic with about 46 hours of power reserve and a 4Hz beat. The older 3714 ran a modified Valjoux 7750, which is exactly why so many older replicas looked convincing. When the base movement is the same, the copy inherits the geometry. The 69355 is a different animal, and a replica has to fake the layout instead of borrowing it.

Dial and Hands

  • Subdials. Genuine counters sit in a recess with a snailed texture that catches light in a spiral. Cheap reps print a flat circle and call it done.
  • Numerals. They should be polished metal appliqués with crisp bevels, not painted plates with rounded edges.
  • Date. The font is thin and slightly condensed. Reps often use a fat, generic date wheel that gives it away. Check that the window is cut clean and sits just under the dial surface.
  • Hands. Leaf hands have a gentle curve and a polished, faceted profile. Flat, stamped hands look dull from the side.
  • Printing. The minute track and text should stay sharp under magnification. Fuzzy edges mean pad printing done on the cheap.

Case, Crystal, and Finish

Measure it. The genuine case runs roughly 41mm across and about 13mm thick, and most replicas of this reference come in a millimeter or two thicker because the movement underneath needs the room. A thick case throws off the whole silhouette, and it is the first thing a Portugieser owner notices.

Look at the crystal next. The real one is domed sapphire with anti-reflective coating on both faces, which is why the dial stays readable at angles. Single-sided coating shows up as a blue or purple glare when you tilt the watch toward a window. Cheap reps skip the inner coating and the dial turns into a mirror.

Then the case finishing. Brushed flanks, polished bezel, and a crisp line where the two meet. If the brushing runs in the wrong direction or the bezel edge feels rounded instead of sharp, the case came off a low-grade line.

Movement and Pushers

This is where honest sellers separate themselves. A top-tier build uses a clone chronograph movement with a column wheel or a modified 7750, and it keeps the bicompax layout correct. A low-tier build uses whatever fits, which means subdial positions drift or the 12 o'clock counter becomes decorative.

Test the pushers before you commit. Start the chrono, let it run, stop it, reset it. The reset should snap back to zero in one motion. If the hand lands at 11 o'clock or drifts, the reset hammer is out of spec. Feel the pusher travel too. Genuine pushers are firm and short. Mushy, long-travel pushers mean a cheap actuator.

Strap and Clasp

Most replicas ship on embossed calf leather pretending to be alligator. That is fine as a placeholder, since straps are easy to swap. What matters more is the clasp. A milled deployant with clean engraving and a positive lock is a sign of a serious build. Stamped sheet metal with soft edges is not.

Price Tiers and What They Buy

  • Budget tier: correct case diameter, wrong thickness, printed subdials, generic date wheel. Fine as a novelty, not for daily wear.
  • Mid tier: proper bicompax layout, sapphire crystal, decent dial printing, a movement that usually holds time. The sweet spot for most buyers.
  • Top tier: correct thickness within a fraction of a millimeter, recessed counters, applied numerals, AR coating on both sides, and a movement an independent watchmaker can service.

The jump from mid to top tier is a few hundred dollars. The jump in how the watch looks on the wrist is bigger than that.

Red Flags

  • No straight-on dial photo, no crown-side profile, no caseback shot.
  • Claims of a Swiss movement in a watch at this price point. It is not happening.
  • Listings that never state the case thickness.
  • Water resistance claims with no pressure-test documentation. Treat any replica as splash-safe at best.

Water Resistance, Service, and Resale

Assume nothing about water resistance. Gaskets on replicas are the first thing to fail, and a fogged dial is not a cheap fix. Keep it away from showers, pools, and the ocean unless a watchmaker has pressure-tested it for you.

Servicing is possible through an independent watchmaker, since these movements are clones of well-known designs. IWC will not touch a counterfeit, and its extended warranty program covers only genuine watches sold through authorized channels. Resale value, meanwhile, is close to zero. Buy a replica to wear, not to hold.

One more thing worth saying plainly: selling counterfeit watches is illegal in the United States, and US Customs can seize imported goods that carry a counterfeit trademark. Know where you stand before you spend.

Before You Pay: A Checklist

  1. Ask for the case thickness in millimeters and a photo with calipers.
  2. Request a straight-on dial shot and a tight crop of the date window.
  3. Request a profile shot so you can judge crystal dome and case height.
  4. Confirm the subdials at 12 and 6 are recessed, not printed.
  5. Ask which movement is inside and whether a watchmaker can service it.
  6. Confirm the return policy in writing before payment.

Get those six answers and the decision makes itself. Skip them and you are gambling on photos that were lit to hide exactly the flaws you care about.