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Swipe to turn · tap to open zoomCartier Black Dial Diamond-Set 21.5mm
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
My dream watch is this Cartier Tonneau gold and diamond tonneau watch, measuring 21.5mm x 39.2mm x 7.52mm. The moment I held it in my hand, I was completely mesmerized by its beauty. The design, embodying French elegance, is simply stunning! The tonneau-shaped case is more distinctive than a regular watch, and the bezel is encrusted with diamonds. The diamonds refract light beautifully, creating a dazzling effect without being overly ostentatious. The classic Roman numeral hour markers paired with the silver dial are both vintage and sophisticated. The matte black leather strap is comfortable and fits snugly on the wrist, making it perfect for everyday wear. The small diamond embellishments on the crown are exquisite; Cartier's brand craftsmanship is truly impeccable. Holding it in my hand, it has a substantial weight, exuding both luxury and taste.
Specifications
| Maison | Cartier |
| Case size | 21.5 MM |
| Dial | Black |
| 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
Cartier Black Dial Diamond-Set 21.5mm
Not a studio frame. The same piece, in the room it was photographed in, with nothing tidied out of the way.
As it arrives
Cartier Black Dial Diamond-Set 21.5mm
Kept unretouched: what is in this photograph is what goes into the parcel.
From the bench
Cartier Black Dial Diamond-Set 21.5mm
One of our own frames rather than a catalogue picture — included because it shows what a white background hides.
Off the sweep
Cartier Black Dial Diamond-Set 21.5mm
Not a studio frame. The same piece, in the room it was photographed in, with nothing tidied out of the way.
As it arrives
Cartier Black Dial Diamond-Set 21.5mm
Kept unretouched: what is in this photograph is what goes into the parcel.
