Replica IWC Portugieser Chronographs stand or fall on one detail: the dial layout. The IW371414 carries a two-counter face with running seconds at 6 and a 30-minute chronograph totalizer at 12. Most cheap fakes break that layout before you ever see the movement. This review ranks the grades that exist and explains what separates them.
Prerequisites
- A 10x loupe or a phone macro lens
- Digital calipers
- Clear reference photos of the genuine IW371414 dial, caseback and crown
- Awareness that selling counterfeit trademarked watches is illegal in the US, and shipments can be seized
The pick: high-grade clone with a 79350-style movement
Start here. A top-tier fake IW371414 uses a movement built to mirror the genuine 79350 layout: no center seconds hand, continuous running seconds in the lower subdial, and a 30-minute counter in the upper subdial that steps one minute at a time instead of sweeping. Case diameter lands at 40.9 to 41 mm, thickness at 12.3 to 12.6 mm, and the crystal sits close to the bezel with a faint blue anti-reflective tint rather than a heavy purple one.
Fake IW371414 vs Original IW371414: A Comprehensive Comparison
Why it wins: the subdial spacing is correct, so the numerals at 3 and 9 sit where they should and the two counters do not crowd the center. Dial printing is raised and glossy, and the leaf hands carry a slight curve rather than a flat stamp. From arm's length nothing on the watch reads as wrong.
Fake IW371414 Buying Guide: How to Pick the Best Replica IWC Portugieser Chronograph
Option 2: converted A7750 build
Cheaper, and visibly so once you know the tells. These use a stock Valjoux 7750 with a module or transfer gears to move the running seconds from 9 to 6. Subdial spacing usually survives, but case thickness grows to 13.5 mm or more, the 6 o'clock hand stutters, and the caseback rotor engraving is shallow. Fine on a strap for casual wear, poor on a bracelet where the extra height shows against the wrist.
Fake IW371414: How to Spot a Replica IWC Portugieser Chronograph
Option 3: budget quartz and 21-jewel automatic
Skip these unless the price is throwaway money. Quartz versions tick once per second in the running subdial, which no mechanical Portugieser does. Automatic versions at this tier often add a phantom date window at 3, use painted rather than applied numerals, and wire the two subdials as day-night or 24-hour displays. Proportions are wrong from a meter away.
How to check a fake IW371414 in 7 steps
- Measure the case across the bezel at 2, 4, 8 and 10 o'clock with calipers; anything past 41.5 mm is the wrong case.
- Measure thickness from caseback to crystal; 12.3 to 12.6 mm is the target, and 13.5 mm or more points to a converted 7750.
- Watch the lower subdial for a full minute; the hand must sweep, not tick.
- Run the chronograph and confirm the upper counter advances in single-minute jumps and snaps back to zero on reset.
- Confirm there is no date aperture anywhere on the dial.
- Inspect the caseback engraving and rotor decoration with the loupe; laser-etched text looks grey and flat next to cut engraving.
- Press the pushers and pull the crown; throw should be short and firm, and the crown should have one position only, since there is no date to set.
Red flags that end the deal
- Running seconds at 6 that tick once per second
- A date window at 3
- A sweeping center seconds hand
- Subdials marked 24 or 60 instead of 30
- Numerals that sit flush and painted rather than applied and raised
- Seller photos that stop at studio renders with no macro of the dial or caseback
- Listings that quote one case size in the title and another in the spec block
Verdict
Buy the high-grade 79350-style clone or buy nothing. The converted A7750 is a usable fallback if the price drops well below the top tier and you plan to wear it on leather, but the thickness and the stuttering seconds hand never stop being visible. Quartz and 21-jewel versions fail the layout test in ways no strap change can fix. Check subdial behavior, thickness and the absent date before money changes hands, and treat any seller who cannot show those three things as a pass.