What is the replica IW371747 v1?
The replica IW371747 v1 is the first production batch of a copied IWC Portugieser Chronograph, built on a 41 mm steel case with a sapphire crystal and an Asia 7750 automatic chronograph movement. It is the version factories released before buyer feedback came back, so it keeps the flaws that v2 and v3 later corrected. Collectors treat it as the baseline for judging every later batch.
A v1 is not a genuine IWC and should never be represented as one. Treat it as a low cost way to get the Portugieser look, not as an asset.
V1 vs v2 vs v3: what actually changed?
Later batches fixed dial printing, date wheel font, and caseback engraving depth. The case shape and crystal on v1 are already close to the original in size and feel. Most upgrades after v1 sit on the dial side, which is where the eye lands first.
- Dial: v1 subdial rings are shallow and printed, later versions use deeper recessed rings.
- Date: v1 numerals run bold and sit high inside the window.
- Caseback: v1 engraving is laser shallow, so lettering looks flat under angled light.
- Crown: v1 logo edges are soft, later batches sharpen the relief.
Spec snapshot of the v1
- Case: 41 mm stainless steel, polished bezel, brushed flanks
- Thickness: about 13 mm to 14 mm depending on the movement spacer
- Crystal: flat sapphire with single side anti-reflective coating
- Movement: Asia 7750, 28,800 vph, running seconds at 6
- Water resistance: splash resistant only, do not swim with it
- Strap: alligator grain leather on a steel pin buckle
Is the chronograph usable on v1?
Yes. The pushers start, stop, and reset, and the 30 minute counter at 12 tracks the elapsed time. The Asia 7750 is a proven design, though the v1 rotor and spacer can sound rough. Reset the chrono before you store the watch to avoid strain on the movement.
What should you check before paying?
- Ask for a straight-on dial photo and a macro shot of the date window.
- Confirm both subdial hands return to zero after a full reset.
- Request a lume photo to see whether all numerals glow at the same strength.
- Get a caseback photo shot at an angle so engraving depth is visible.
- Check that the crown threads engage and the pushers feel firm, not gritty.
How much does a v1 cost?
V1 stock sells well below later batches because the flaws are documented and easy to spot. Expect a gap of roughly 20 to 35 percent against the newest version of the same reference. A price far under that range usually points to a rejected QC unit being cleared out.
Who should skip the v1?
Buyers who want a dial that survives close inspection should move straight to a later batch. V1 suits people who want the silhouette at the lowest cost and accept the printing differences. Anyone planning to resell later should avoid it, since the tells show up in ordinary photos.
Bottom line
The replica IW371747 v1 is a solid first effort with a correct footprint and a working chronograph. Its weak points are cosmetic and easy to identify once you know where to look. Buy it cheap, inspect it hard, and treat it as a stepping stone rather than a keeper.