Cartier Ballon de Cartier W4BB0021
Ref. W4BB0021 · In production
- Case33 mm
- Thick10.5 mm
- Water res.30 m
- MovementAutomatic
- CrystalSapphire
Cartier Ballon de Cartier W4BB0021 size, specs and price at a glance
The Cartier Ballon de Cartier W4BB0021 is 33 mm wide and 10.5 mm thick. Cartier does not publish its lug-to-lug length. and ships on a bracelet. It is water resistant to 30 m. US list price: $8,800 when we last checked cartier.com (3 Nov 2026).
Strap shopping? See our Cartier size chart.
Overview
The Cartier W4BB0021 is a dress watch from the Ballon de Cartier collection. It has a 33 mm stainless steel case, 10.5 mm thick. Inside is an automatic movement. You also get 30 m water resistance, a sapphire crystal and a bracelet.
Who it suits
- Wrists of roughly 13.0–14.9 cm (5.1–5.9 in), by our Watch Finder sizing guide
- Desk and dress wear (keep it away from swimming)
- Shirt cuffs and smarter dress codes
Strengths
- Sapphire crystal resists scratches
- Slim at 10.5 mm
Trade-offs
- Only 30 m water resistance: splash-proof, not for swimming
Written by Watch.co from the published specs below. These are not owner reviews.
Full specifications
Case
| Case diameter | 33 mm | cartier.com · 3 Nov 2026 |
|---|---|---|
| Thickness | 10.5 mm | cartier.com · 3 Nov 2026 |
| Lug-to-lug | Not published by Cartier | |
| Case material | Stainless steel | cartier.com · 3 Nov 2026 |
| Crystal | Sapphire | cartier.com · 3 Nov 2026 |
| Water resistance | 30 m | cartier.com · 3 Nov 2026 |
Movement
| Movement type | Automatic | cartier.com · 3 Nov 2026 |
|---|
Strap / Bracelet
| Bracelet / strap | Bracelet | cartier.com · 3 Nov 2026 |
|---|
Other
| US list price (MSRP) | $8,800 | cartier.com · 3 Nov 2026 |
|---|---|---|
| Production status | In production | cartier.com · 3 Nov 2026 |
| Style (our classification) | Dress | our classification |
Specs are summarised in our own words from the brand's product page. Each row links its source and the date we checked it. Fields we haven't verified are left out rather than guessed.
Variants with the same specs
Same case, movement and bracelet or strap; typically a different dial or finish.
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Similar alternatives
Picked with Watch Finder's style tags and sizing.
Questions about the Cartier Ballon de Cartier W4BB0021
How big is the Cartier Ballon de Cartier W4BB0021?
The case is 33 mm wide, 10.5 mm thick.
What movement does the Cartier Ballon de Cartier W4BB0021 use?
It uses a movement, a automatic movement.
Can I swim with the Cartier Ballon de Cartier W4BB0021?
Not really. It is rated to 30 m.
How much is the Cartier Ballon de Cartier W4BB0021?
The US list price was $8,800 on cartier.com when we checked on 3 Nov 2026. Prices change, so check before you buy.
Will the Cartier Ballon de Cartier W4BB0021 fit my wrist?
By our sizing guide it sits best on wrists of about 13.0–14.9 cm (5.1–5.9 in). Use the fit checker on this page to test your own wrist.
Watch.co is independent and not affiliated with any brand. Brand names are used only to identify products.