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Swipe to turn · tap to open zoomIWC Portofino Moon Phase 40mm
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
[IWS Factory 2021 New Product Recommendation] IWC Portofino Collection Moon Phase Automatic Watch! Three Unique Features:
1⃣️Exclusive, custom-made IWC Cal.35800 true moon phase functions movement, most other versions on the market are day/night wheels!
2⃣️The only factory on the market with wave-shaped bar polishing technology, achieving the same effect as the original, resulting in a superior overall dial face texture!
3⃣️With the support of custom-made movements, the size is identical to the original! Diameter 40MM x 11MM! Other versions on the market are much thicker!
IWS Factory's masterpiece is ready for all watch enthusiasts to appreciate!
Specifications
| Maison | IWC |
| Case size | 40 MM |
| Movement | 35800 |
| 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 Portofino Moon Phase 40mm
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 Portofino Moon Phase 40mm
Kept unretouched: what is in this photograph is what goes into the parcel.
From the bench
IWC Portofino Moon Phase 40mm
One of our own frames rather than a catalogue picture — included because it shows what a white background hides.
Off the sweep
IWC Portofino Moon Phase 40mm
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 Portofino Moon Phase 40mm
Kept unretouched: what is in this photograph is what goes into the parcel.
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