The strongest pick in this class is a 42.3 mm Portugieser Automatic 7 Days build with a dual-barrel clone movement, sharply printed dial text, and a sapphire display back. Those three points decide whether the watch reads as the original on the wrist and through the caseback. The sections below judge replica executions on four criteria: case geometry, dial printing, movement honesty, and strap and crystal hardware.

What the original gives you

  • Case: 42.3 mm across, roughly 14.5 mm thick, polished bezel with brushed flanks.
  • Dial: small seconds on the left, power reserve indicator on the right, a date aperture set low on the dial.
  • Movement: IWC calibre 52010, Pellaton winding, twin barrels, a 168-hour power reserve.
  • Crystal and back: sapphire on the front and a display back that shows the decorated movement.

Keep that list next to you when you compare a build to photos of the real reference. Any deviation there is visible from arm's length.

Criterion one: case size and profile

Pros

  • A true 42.3 mm case sits close to the original proportions on a 17 cm to 19 cm wrist.
  • Brushed flanks paired with a polished bezel copy the original mix of finishes.
  • Correct lug shape lets a 22 mm strap sit flush instead of bowing at the spring bars.

Cons

  • Many builds ship at 43 mm or 44 mm and read oversized beside the genuine watch.
  • A thick caseback lifts the watch off the wrist and changes the side profile.
  • Sharp lug edges feel wrong and catch on shirt cuffs.

Best for: buyers who have handled the real reference or plan to wear the watch next to someone who has.

Criterion two: dial printing and layout

Pros

  • Correct subdial spacing keeps the dial balanced and the hands clear of each other.
  • Applied indices and a crisp printed minute track hold up under direct light.
  • Polished and heat-blued hands catch light the way the original does.

Cons

  • Blurry text, the wrong font weight, or a date window sitting a hair off center.
  • Painted hands that look flat and gray instead of reflective.
  • Subdials cut too deep or too shallow, which flattens the whole face.

Best for: anyone who values how the watch looks across a table more than what is engraved on the rotor.

Criterion three: movement and power reserve

Pros

  • A clone 52010 layout with two barrels can genuinely approach the seven-day figure.
  • Decorated bridges and a signed rotor look convincing through the display back.
  • Hacking and a smooth sweep keep daily use simple.

Cons

  • Most generic automatics sold as seven day deliver roughly 40 to 50 hours, not 168.
  • Glued-on decorative plates peel, and a loose rotor rattles against the caseback.
  • Winding feel on cheap movements is gritty, which is obvious the moment you set the watch.

Best for: buyers who take the watch off for a weekend and expect it to still be running on Monday. Ask the seller for a timed power reserve test before you pay.

Criterion four: strap, clasp, and crystal

Pros

  • Alligator-grain leather with a signed buckle completes the look at little cost.
  • Single-domed sapphire with anti-reflective coating on both sides gives the right clarity.
  • A properly seated crystal with no glue haze around the edge survives daily wear.

Cons

  • Stiff, plastic-feeling straps with visible stitching errors.
  • Flat mineral glass that reflects instead of dimming reflections.
  • Folding clasps that loosen within weeks.

Best for: daily wear, where the strap and crystal take the abuse rather than the case.

Questions to settle before you commit

  1. What is the exact case diameter and thickness, measured, not quoted?
  2. How long did the watch run on a full wind, timed with the seconds hand?
  3. Is the display back showing a real movement or a decorative plate over a basic one?
  4. Are the crown, pushers, and date change smooth and firm, with no grinding?
  5. Does the strap width match the lug width exactly?

A note on rules and resale

Customs rules and trademark law differ by country, and seized shipments are the buyer's loss in most cases. Counterfeit goods also carry no resale value and cannot be serviced by an authorized watchmaker. Weigh that against the price before you decide.