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Swipe to turn · tap to open zoomIWC Portugieser IW371617
List price struck through — this holding, at this figure, while it lasts. Checkout locks the price you see.
Insured worldwide delivery included · pay by crypto at checkout
The movement inside This reference is built with either calibre. The choice changes the price, the rate and the reserve — nothing else about the watch.
| Base | Seiko NH35 or Miyota 8215, automatic | Swiss clone of the maison's own calibre |
|---|---|---|
| Rate | ±15 to 25 seconds a day | ±5 to 10 seconds a day |
| Reserve | About 40 hours | 55 to 70 hours |
| Balance | 21,600 A/h · six beats a second | 28,800 A/h · eight beats a second |
| Servicing | Any watchmaker can service it; parts are everywhere | Serviced by a specialist; finished as the original is |
| Suited to | Wearing daily, keeping simply, spending less | Matching the reference exactly, and glass casebacks |
The Swiss movement is $50 more. That figure buys the rate, the reserve and a movement that reads correctly through a glass back — not a different watch.
Which we would take. If it is to be worn every day and serviced down the road from you, the Japanese is the honest answer. If it has to survive a loupe against the reference — or the caseback is glass and the movement is meant to be seen — take the Swiss.
The exact base calibre for this reference is confirmed in writing, with the QC film, before anything is dispatched. The two movements, explained
- Ships from the USA
- QC film before ship
- 2-year warranty · insured express
Add to cart, enter your ship-to details, then pay with crypto — or message the desk (replies typically within a few hours, Pacific business hours). QC film usually same day after payment clears — reply GL to ship or RL for another. Japanese +$50 · Swiss +$100.
Before you decide: how we inspect · Swiss or Japanese · what 1:1 means · FAQ
Description
The new ZF timeless classic – the IWC Portugieser Chronograph Collection's first stainless steel bracelet watch, IW371617, features a 41mm case diameter. Polished and brushed finishes exude masculinity from every angle, ensuring durability.
【Dial】The silver dial, paired with blued steel hands and Arabic numeral hour markers, exudes elegance. Each of the 12 Arabic numerals is individually molded and polished, complemented by blued steel hands and the signature upper and lower dial markers, resulting in a clean and elegant dial.
【Movement】ZF's self-developed IWC 9355 chronograph movement features a classic column wheel design and a highly efficient bidirectional ratchet winding system providing 46 hours of power reserve. The transparent back cover allows for a clear view of the exquisite movement.
【Strap】 The stainless steel bracelet features a brushed finish on both sides, while the central links are polished; the bracelet is equipped with a butterfly clasp. Stainless steel bracelets are more suitable for everyday wear, offering high practicality and resistance to humid environments, sweat, and salt water.
ZF Classics Never Sleep, produced by [brand name] is always a masterpiece!
Specifications
| Reference | IW371617 |
| Maison | IWC |
| Case size | 41 MM |
| Dial | Silver |
| Grade | Standard |
| Warranty | Two years, mechanical defects |
| Dispatch | 1–2 business days after QC approval |
Any term in this table can be looked up — beat rate, lug-to-lug, amplitude, power reserve — in the glossary.
What you see on the QC film
Macro stills and short film of your exact watch — dial print and lume, case flanks, bezel action, clasp stampings, crown threads, and the movement running. Nothing ships until you reply GL. RL means we swap or adjust first. See how ordering works.
Shipping & delivery
After GL: 1–2 business days to prep, then insured express (DHL, UPS or EMS) another 5–10. Tracking is e-mailed the moment the piece leaves. Packaging is double-boxed and discreet.
Warranty & returns
Two-year warranty against mechanical defects. Unworn pieces may be returned within 14 days or exchanged within 30, protective seals intact. Full terms.
Off the sweep
IWC Portugieser IW371617
Not a studio frame. The same piece, in the room it was photographed in, with nothing tidied out of the way.
As it arrives
IWC Portugieser IW371617
Kept unretouched: what is in this photograph is what goes into the parcel.
From the bench
IWC Portugieser IW371617
One of our own frames rather than a catalogue picture — included because it shows what a white background hides.
Off the sweep
IWC Portugieser IW371617
Not a studio frame. The same piece, in the room it was photographed in, with nothing tidied out of the way.
As it arrives
IWC Portugieser IW371617
Kept unretouched: what is in this photograph is what goes into the parcel.
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