WSSA0018
CurrentSantos de Cartier Large Steel
2018 — present
39.8mm steel large Santos with two-tone bracelet and leather strap. Calibre 1847 MC.
The Cartier Santos holds a claim few watches can match: it is the world's first purpose-built men's wristwatch. In 1904, Louis Cartier created it for his friend Alberto Santos-Dumont, the Brazilian aviation pioneer who needed to read the time during his pioneering flights without reaching into his pocket. The watch Santos-Dumont wore — a square case with visible screws on a leather strap — became the Santos de Cartier, a design so perfectly conceived that it remains in continuous production 120 years later. The current Santos is available in the large (ref. WSSA0018, 39.8mm) and small (ref. WSSA0009, 35.1mm) sizes, both in steel and two-tone steel/yellow gold, all featuring Cartier's QuickSwitch interchangeable strap system. This system — allowing the strap to be changed between leather, rubber, and metal bracelet in seconds without tools — is one of the most elegant mechanical convenience features in modern watchmaking. The Santos remains exceptionally versatile: at home in business meetings and weekend activities alike, its clean geometric dial and exposed-screw bezel give it personality without formality. Pre-owned Santos watches offer exceptional value relative to retail.
Key References
100%
Authenticated
5,000+
Pieces Sold
25+
Countries
Specifications
| Movement | Calibre 1847 MC — automatic, COSC certified |
|---|---|
| Power reserve | 42 hours |
| Water resistance | 100 metres |
| Case material | Stainless Steel · Yellow Gold · Yellow Gold and Steel · Rose Gold |
| Case diameter | 35.1mm (small/medium) · 39.8mm (large) |
| Thickness | 8.83mm (large) · 8.32mm (small) |
| Lug-to-lug | 47.0mm (large) |
| Weight | ~135g (large steel on bracelet) |
| Crystal | Sapphire (anti-reflective) |
| Bezel | Square with eight visible blue screws |
| Bracelet | Steel bracelet with QuickSwitch interchangeable strap system |
Reference Guide
WSSA0018
Current2018 — present
39.8mm steel large Santos with two-tone bracelet and leather strap. Calibre 1847 MC.
WSSA0029
Current2018 — present
39.8mm two-tone steel and yellow gold with bracelet.
WSSA0030
Current2018 — present
39.8mm full 18ct yellow gold Santos with matching bracelet.
WSSA0009
Current2018 — present
35.1mm steel medium Santos — the unisex size.
WSSA0010
Current2018 — present
35.1mm medium two-tone Santos.
WGSA0035
Current2019 — present
43.5mm × 31.4mm yellow gold Santos-Dumont — the formal hand-wound version.
WSSA0072
Current2022 — present
39.8mm steel with skeletonised movement visible through dial.
Market Price
Current retail (WSSA0018)
~$8,300
Pre-owned (low)
$6,500
Pre-owned (high)
$10,500
Recently observed
Steel WSSA0018 trades $7,500–$8,800 with full set; two-tone WSSA0029 at $9,500–$11,500.
Yellow gold WSSA0030 at $32,000–$38,000. Santos-Dumont yellow gold trades $25,000–$30,000. Skeletonised WSSA0072 at $25,000–$32,000.
History
1904
Louis Cartier creates the Santos for aviator Alberto Santos-Dumont — world's first purpose-built men's wristwatch.
1911
Santos goes into commercial production after Santos-Dumont publicly demonstrates the watch.
1968
Modern Santos relaunched with the iconic round-screw bezel design.
1978
Santos Galbée introduced — curved case for better wrist fit.
1987
Santos 100 launched for the centenary, with larger 38mm case.
2018
New Santos generation (WSSA series) launched with QuickSwitch interchangeable strap system.
2022
Skeletonised Santos WSSA0072 introduced.
Buying Guide
01
Santos large (39.8mm) suits wrists 6.5" and up. Santos medium (35.1mm) is the unisex size and works on virtually any wrist. The medium is increasingly popular with male buyers who prefer subtle proportions. Try both before committing — the size difference significantly affects wrist presence.
02
Modern Santos (WSSA series) includes the QuickSwitch system — change between steel bracelet, leather, and rubber straps in seconds without tools. This dramatically extends the watch's wearability: bracelet for daily/business, leather for formal, rubber for active wear. Confirm all included straps are present pre-owned.
03
The two-tone steel/yellow gold (WSSA0029) is currently the most-requested Santos pre-owned, offering the prestige of gold detailing at a more accessible price than full gold. Trades $9,500–$11,500 with full set.
Sizing
Santos Large at 39.8mm with 47.0mm lug-to-lug fits wrists 6.5" and up. The square case wears slightly larger than its diameter due to the broad bezel. Santos Medium at 35.1mm fits virtually any wrist. The QuickSwitch bracelet allows fine micro-adjustment for comfort. Stack height of 8.83mm slips under most cuffs.
Compare
Tank is Cartier's classic dress watch with a rectangular case. Santos is the sport-utility everyday watch with a square case and bracelet. Both are iconic but serve different occasions.
Ballon Bleu is the modern Cartier round-case classic with floating crown design. Santos is the heritage square-case classic. Different aesthetics, both staples of the Cartier catalogue.
Panthère is the jewellery-watch designed for evening wear. Santos is the everyday workhorse. Together they cover the full spectrum of Cartier wearability.
In Stock
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