Cartier
Santos de Cartier (Large)
WSSA0029 · 39.8×47.5mm · 100m
The 1904 aviator's wristwatch.
Cartier's two foundational designs
The Santos (1904) is widely credited as the first purpose-designed men's wristwatch. Louis Cartier built it for the aviator Alberto Santos-Dumont, who needed to time his flights without taking a pocket-watch out. The Tank (1917) followed, taking the overhead silhouette of the Renault FT tank as inspiration. Together they define Cartier's design vocabulary: Roman numerals, sword hands, blue-cabochon crown, brancards extending into the lugs.
Spec sheet
| Attribute | Cartier Santos de Cartier (Large) | Cartier Tank Louis Cartier |
|---|---|---|
| Reference | WSSA0029 (Santos Large) | WGTA0010 (Tank LC) |
| Dimensions | 39.8×47.5mm × 9.08mm | 33.7×25.5mm × 6.6mm |
| Case material | Steel, two-tone, gold options | 18k yellow gold (LC); steel (Tank Must) |
| Water resistance | 100m | 30m |
| Movement | Cal. 1847 MC automatic | Cal. 8971 hand-wound |
| Reserve | 42 hours | 38 hours |
| Bracelet/strap | QuickSwitch interchangeable | Alligator strap |
| Special | Square case, exposed screws | Brancards, blue cabochon, Roman dial |
| Retail | ~€7,750 | ~€7,500 (gold) / ~€2,800 (Must) |
Different functional briefs
Santos is sport-leaning: 100m water resistance, automatic movement, QuickSwitch interchangeable strap-and-bracelet system, exposed screws as a design signature. Reads as 'casual luxury watch' across contexts.
Tank LC is pure dress: 30m water resistance, hand-wound calibre, alligator strap, hidden movement. Reads as 'classical dress watch' and pairs only with formal/business contexts.
Wrist proportions
Santos Large at 39.8×47.5mm reads as a substantial square watch (47.5mm length is significant). Fits 6.5"+ wrists. Tank LC at 33.7×25.5mm is much more delicate; fits 6.0"+ wrists and disappears under a shirt cuff.
Heritage carry
Both designs are continuously produced since launch. The Santos is associated with aviation heritage and Cartier's role in the early wristwatch transition; the Tank is associated with the celebrity-wearer canon (Jackie Kennedy, Princess Diana, Andy Warhol, Muhammad Ali, Alain Delon).
Pros and cons
Santos de Cartier (Large) · Pros
- Sport-spec (100m WR, automatic)
- QuickSwitch strap-bracelet interchange
- Modern wrist presence
- Available at retail
Santos de Cartier (Large) · Cons
- Larger / louder wrist presence
- Less classical-formal versatility
- Two-tone variants polarising
Tank Louis Cartier · Pros
- The most-cited heritage dress watch
- Smaller / under-cuff sizing
- Tank Must steel option at €2,800
- Available in many configurations
Tank Louis Cartier · Cons
- 30m water resistance (true dress spec)
- Hand-wound (daily winding)
- Hidden movement on most refs
Verdict: which one?
If you want one Cartier you can wear daily across contexts: Santos de Cartier. The QuickSwitch system is genuinely useful and the 100m WR removes the need to baby it.
If you want a pure dress watch with the Cartier celebrity heritage: Tank Louis Cartier. Or step into Tank Must at €2,800 for the silhouette without the gold-case price.
Both belong in different rotation slots, not in competition.
Common questions
What's the difference between the Cartier Santos de Cartier (Large) and the Cartier Tank Louis Cartier?
Cartier's two icons against each other. Santos (1904) as the original aviator's wristwatch against the Tank (1917), Cartier's pure Art Deco rectangular dress.
Cartier Santos de Cartier (Large) or Cartier Tank Louis Cartier: which should you buy?
If you want one Cartier you can wear daily across contexts: Santos de Cartier. The QuickSwitch system is genuinely useful and the 100m WR removes the need to baby it.
When were the Santos de Cartier (Large) and Tank Louis Cartier introduced?
The Cartier Santos de Cartier (Large) was introduced in 1904; the Cartier Tank Louis Cartier in 1917.
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