Buy the dial first, the movement second, the case last. On a fake IWC Portugieser Chronograph IW371484, everything a stranger reads at arm's length sits on the dial: the leaf hands, the applied numerals, the two sub-dials at 12 and 6, and the date at 3. A build with a working 30-minute totalizer at 12, running seconds at 6, and crisp printing will pass casual inspection long before anyone flips the watch over. Cheap versions fail there, with sub-dials in the wrong position, painted markers instead of applied ones, or a faux chronograph that just moves a hand around. Demand macro photos of the dial before payment; that single step filters out most of what is sold.

What the IW371484 actually is

The reference belongs to the IWC Portugieser Chronograph family, so the platform specs below are what any replica is trying to copy. Verify your specific dial variant against genuine reference photos, because dial colour, numeral finish, and hand treatment change between editions.

  • Case: stainless steel, roughly 41 mm across, about 12.3 to 13 mm thick
  • Lug width: 20 mm, with curved lugs that hug the wrist
  • Crystal: sapphire front, sapphire display back on current production
  • Dial: silver-plated or coloured base, applied numerals, leaf-shaped hands
  • Layout: 30-minute chronograph counter at 12, small seconds at 6, date at 3
  • Movement: calibre 69355 with column wheel in current examples, 79350 (Valjoux 7750 base) in older ones
  • Water resistance: 30 m, which means splash resistance and nothing more

What to look for before you pay

  • Sub-dial function. The top sub-dial must count chronograph minutes to 30, and the bottom one must run continuous seconds. A 24-hour indicator posing as a chrono counter is the most common cheat.
  • Applied numerals. They should sit proud of the dial with visible thickness and clean edges. Flat printed numerals kill the illusion instantly.
  • Hands. Leaf hands should reach the minute track without overrunning it, with a smooth finish and no tool marks at the pinion.
  • Dial print. Text under the 12 should be sharp at macro distance, with even spacing and no blur.
  • Date window. No cyclops, a font close to the original, and a window that sits level with the 3 o'clock marker.
  • Case finishing. Brushed flanks, polished bezel edge, and a crisp step where the two meet.
  • Pushers and crown. Chrono pushers should start, stop, and reset with a firm click, not a sponge.
  • Caseback. Engraving depth and rotor decoration matter less than the movement inside, so do not pay a premium for artwork alone.

Tiers, and what each one buys you

  • Entry tier: quartz or decorated automatic with non-functional sub-dials. Skip it. The layout is wrong and the seconds hand ticks.
  • Mid tier: Asian 7750 with the correct 12 and 6 sub-dial positions. Good bones, but expect thicker cases and softer dial finishing.
  • Upper tier: a clone of the 69355 or a well-regulated 7750, applied numerals with proper height, blued or polished hands, and a display back worth looking at.

Thickness is the tell between tiers. A 7750-based build often runs 1 to 2 mm thicker than the genuine watch, which shows under a cuff and in profile photos.

Pitfalls that cost real money

  1. Stock or borrowed QC photos. Ask for a dated photo of the exact watch, dial and caseback.
  2. Claims of Swiss origin at bargain prices. The movement inside will be Asian.
  3. Treating 30 m water resistance as swimmable. It is not, on genuine or replica.
  4. "1:1" marketing with no macro shots. The phrase means nothing without detail images.
  5. Ignoring service cost. A 7750 needs a watchmaker who knows it, and that adds to the real total.

FAQ

Is the Asian 7750 reliable enough for daily wear?

It is a proven design and most examples run well when regulated, but it is a mass-produced movement. Avoid heavy chrono use near water, and budget for a service after a few years.

Do the sub-dials have to work?

Yes. On this reference the dial is the whole point. A non-working counter at 12 is visible to anyone who knows the model, and reset behaviour is the first thing an experienced eye tests.

Should I pay more for a clone 69355?

Only if the dial and case are already correct. Movement decoration sits behind sapphire; dial execution is what people see. Fix the front before upgrading the back.

Will it pass as genuine?

Not under close inspection by a jeweller or an owner. Treat a replica as an affordable homage to the design, not as a substitute for authentication.

What strap should it come on?

The reference is usually paired with a leather strap and steel pin buckle. Check stitching density and leather thickness, since cheap straps give away the package faster than the watch head.