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Swipe to turn · tap to open zoomIWC Ingenieur Perpetual Calendar
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. Either way you get a QC film of this piece: 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
KR's new IWC Ingenieur collection perpetual calendar watch is the most complicated replica watch in the world, with all functions synchronized with the original, and all functions adjusted via the crown.
1⃣️【Functions Introduction】The calendar is displayed at the 3 o'clock position, the day of the week is displayed at the 9 o'clock position, and the month is displayed at the 6 o'clock position with a moon phase pointer.
2⃣️【Exquisite Craftsmanship】The outer shell adopts the same three-piece structure as the original, with a brushed middle section and polished upper and lower shells. The mirror surface uses high-cost dome-shaped sapphire, which enhances its texture.
3⃣️【Movement Performance】 Size 41.6mm, the movement uses Tianjin Movement modified 82600, which is highly efficient and stable, with a power supply time of more than 72 hours. It is equipped with a complex perpetual calendar module, and all functions are synchronized with the original through the adjustment of the handlebars.
4⃣️【⚠️Important Notes】Due to the complexity of the perpetual calendar module, the time will be adjusted before shipment. Customers can directly put it on and wear it upon receipt. ⚠️Please do not adjust it randomly. Due to the added and upgraded functions of the movement, adjustments need to be made slowly.
A masterpiece by KR, welcome to view!
Specifications
| Maison | IWC |
| Case size | 41.6 MM |
| 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 Ingenieur Perpetual Calendar
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 Ingenieur Perpetual Calendar
Kept unretouched: what is in this photograph is what goes into the parcel.
From the bench
IWC Ingenieur Perpetual Calendar
One of our own frames rather than a catalogue picture — included because it shows what a white background hides.
Off the sweep
IWC Ingenieur Perpetual Calendar
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 Ingenieur Perpetual Calendar
Kept unretouched: what is in this photograph is what goes into the parcel.
