The IW371645 is the reference behind one of the most recognizable dress chronographs ever made — the Portugieser silhouette with its stepped bezel, slim leaf hands and uncluttered dial. This replica reproduces that look in a correctly proportioned 42 mm case with a fully working chronograph. If you have been eyeing the original but cannot justify the outlay, this is the version most buyers end up choosing.
What is the IW371645 replica, exactly?
It is a high-grade copy of IWC's Portugieser Chronograph Classic, built to the same 42 mm diameter and roughly 13 mm thickness as the genuine reference. The dial layout, case finishing and strap attachment all follow the original closely.
Key Features
- 42 mm polished stainless steel case with the classic stepped Portugieser bezel
- Working chronograph with central seconds and a combined hour/minute counter at 12 o'clock
- Small running seconds and a date window at 3 o'clock
- Scratch-resistant crystal with an anti-reflective coating
- Applied Arabic numerals and leaf-shaped hands on a clean, legible dial
- Stitched leather strap with a deployant-style clasp
- Solid engraved case back with reference details
- Splash-resistant for daily wear, not intended for swimming
Materials and Specifications
The case is 316L stainless steel, polished on the bezel and lightly brushed along the flanks. The strap is stitched leather on a 20 mm lug width, so most aftermarket straps will fit. The chronograph is fully functional: the pushers start, stop and reset the central seconds and the counter at 12 o'clock. Water resistance is rated for splashes and rain only.
Shipping and Returns
Orders ship free with tracking, usually within a couple of business days, in plain packaging with nothing on the outside hinting at the contents. Inspect the watch when it arrives; if anything is not right, the return window lets you send it back for a refund or exchange. Keep the box and tags with the watch during that period.
How close is it to the genuine IWC?
Side by side, the proportions, dial printing and case finishing are very close, which is what most buyers care about. The movement and internals are where the two differ.
Will it fit my wrist?
At 42 mm on a 20 mm strap it suits wrists from roughly 6.5 to 7.5 inches. Smaller wrists may find it dressy-large but still wearable.
Do the chronograph pushers actually work?
Yes. They operate the same way as the original — start and stop at 2 o'clock, reset at 4 o'clock — and should be pressed firmly rather than jabbed.