Start With the Case, Not the Movement

The IW371422 is a Portugieser Chronograph, a slim, dressy two-register watch where the case profile and dial furniture do almost all of the visual work. That is why the most reliable way to judge a fake is to inspect the case and dial first and the movement second. A replica with a thick, slab-sided case, drifting subdials, or flat stamped hands reads as wrong from arm's length no matter how nicely its rotor is decorated. A replica with correct proportions and crisp printing can pass casual inspection even with a modest movement inside. Spend your attention in that order, and you will avoid the mistakes that cost most buyers.

What the Reference Actually Is

Before comparing anything, confirm the reference's published specification. The Portugieser Chronograph family uses a round case roughly 41 mm across (some references measure 40.9 mm), a dial with two subdials stacked on the vertical axis, a 30-minute counter above center and running seconds below, leaf-shaped hands, applied Arabic numerals, and a railroad minute track. The chronograph seconds hand is central. The classic two-register layout has no date window.

Movement heritage matters when you evaluate a replica. Earlier Portugieser Chronographs used a modified Valjoux 7750 base, while later references moved to an in-house caliber. Replicas usually follow one of two paths: a 7750-derived automatic with the correct subdial positions, or a custom module built to mimic the same layout. Knowing which path a seller is using tells you what to expect from pusher feel, sweep, and reset behavior.

What to Look For

Case and proportions

  • Diameter should sit near 41 mm, and thickness should stay close to the original's slim profile. Many fakes run one to two millimeters thick because the movement does not fit the case.
  • Caseband brushing should be fine and directional, meeting a polished bezel at a crisp edge.
  • Lugs should curve down toward the wrist, with a lug width near 20 mm and spring bars that sit flush.
  • The crown should be signed and should sit at 3 o'clock with no gap against the case.

Dial and printing

  • Subdials should sit on a vertical line through the center. Horizontal drift is the most common giveaway.
  • Subdial rings should show concentric snailing or fine texture, not a flat printed circle.
  • Printing should stay sharp under magnification, with even weight on the minute track and no ink bleed.
  • Applied numerals should have polished facets that catch light differently from the dial surface.
  • Dial color should be matte or softly grained depending on the variant, never plastic-glossy.

Hands and crystal

  • Leaf hands should taper to a point and stay thin in profile. Stamped flat hands are a clear downgrade.
  • The crystal should be domed sapphire with an anti-reflective coating that cuts glare without a heavy blue or purple tint.

Movement and chronograph behavior

  • Start the chronograph and watch the central seconds hand sweep. It should start without a jump.
  • Stop and reset. The hand should snap back to 12 and stay there across repeated cycles.
  • Running seconds in the lower subdial should sweep smoothly, not tick in visible steps.
  • Pusher travel should feel firm and consistent, not gritty or mushy.

Parameter Bands to Check

  • Case diameter: roughly 40.9 to 41 mm.
  • Case thickness: within about one millimeter of the reference specification.
  • Lug width: around 20 mm.
  • Subdial positions: 12 and 6, both on the vertical center line.
  • Water resistance: the original is rated for light everyday exposure, so treat any replica as splash resistant at best.
  • Strap: alligator-pattern leather with a signed pin buckle or deployant, matched to the dial variant.

Pitfalls to Avoid

  1. Listings that reuse one photo set across several references. Ask for dated, angled photos of the actual piece.
  2. Treating a decorated rotor as proof of quality. Finishing does not fix geometry.
  3. Judging subdial spacing from a straight-on shot. Ask for a slight angle so offset becomes visible.
  4. Assuming one reference string covers every dial and case combination. Confirm the exact configuration you want.
  5. Ignoring the strap and buckle. They are the cheapest part to swap and the easiest place for a seller to cut corners.

FAQ

Is a fake IW371422 a good first replica?

It is a reasonable choice if you want a dress chronograph, but it is not forgiving. The plain dial and slim case leave nowhere to hide sloppy printing or thick proportions.

How can I spot a bad subdial layout in a photo?

Draw an imaginary vertical line through the center of the dial. Both subdials should sit on it. If the upper counter leans left or right, the dial is wrong.

What movement should I expect?

Most replicas in this family use an automatic chronograph based on the 7750 architecture or a clone of a later in-house layout. Ask the seller directly, then compare the answer with the pusher and reset behavior you can see in a video.

Does the crystal really matter?

Yes. A domed sapphire with neutral anti-reflective coating changes how the dial reads in light. A flat or heavily tinted crystal makes an otherwise good replica look cheap.

Should I care about the buckle?

It is a small detail that buyers notice when handling the watch. A signed buckle with clean engraving costs little and finishes the package.