The Cartier Santos and the Rolex Datejust are the two default answers to “one steel watch that works with a suit and a shirt” — and they cost quite different money. As of August 2026 a steel modern Santos de Cartier runs about £3,500–£5,500 pre-owned, while a steel Datejust 36 or 41 runs about £6,500–£9,500. One is bought for its design and its history; the other for its ubiquity and its resale. Here is how they actually compare.

Santos and Datejust: two different kinds of classic
The Cartier Santos is the design-led choice: a square case with exposed bezel screws and an integrated bracelet, tracing its line to 1904, when Cartier built it for the aviator Alberto Santos-Dumont — effectively the first purpose-made men’s wristwatch. You buy it for its architecture and Cartier cachet, not its spec sheet. The Rolex Datejust is the definitive dress-sports Rolex: round Oyster case, fluted bezel, cyclops date and a design language fifty years deep that reads instantly as “a Rolex”. That recognisability is the whole point.
What do they cost pre-owned in 2026?
UK asking prices in GBP as of August 2026, from Watchfinder, WatchCharts UK, Chrono24 UK, BQ Watches and Bob’s Watches. Segmented by metal — steel is the like-for-like; two-tone and gold sit above.
| Segment | Reference (example) | Pre-owned asking range (GBP) |
|---|---|---|
| Santos — vintage Galbée / Round quartz (floor) | W20056D6 | £2,000–£3,500 |
| Santos — steel automatic, modern (core) | WSSA0009 / WSSA0018 | £3,500–£5,500 |
| Santos — two-tone steel & gold | W2SA0016 / Galbée two-tone | £5,000–£8,500 |
| Santos — solid gold / diamond | gold Santos de Cartier | £14,000–£28,000+ |
| Datejust — steel vintage (floor) | 16200 / 16234 | £4,350–£6,500 |
| Datejust — steel 36/41 modern (core) | 126200 / 126300 | £6,500–£9,500 |
| Datejust — two-tone Rolesor (floor) | 16233 | £5,000–£8,000 |
| Datejust — Wimbledon / special dials | 126234 | £9,500–£13,000 |
Wider open-market asking prices, not Chrono6538’s prices. Full-gold and diamond examples of both run higher again.

Which one holds its value better?
The Datejust, on balance — not because it appreciates dramatically, but because it is the most liquid steel watch in the world. Stock is deep, spreads are tight and it resells predictably in any market. The Santos holds its money well for a Cartier and the current-generation steel automatic has been strong, but the pool of buyers is smaller and values move less uniformly. Special-dial Datejusts like the Wimbledon carry a clear premium. None of this is investment advice — values can fall as well as rise.

So which should you buy?
Choose the Santos if you want something recognisably different on the wrist — design-forward, lighter in feel, and with genuine claim to being the original wristwatch. Choose the Datejust if you want the safe, liquid, endlessly wearable steel classic that every jeweller and buyer already understands. Both wear well under a cuff; the Santos is the more distinctive, the Datejust the more universal.
Buy either with box and papers where possible — a full set makes resale easier. Chrono6538 sells authenticated, checked and guaranteed pieces at a premium to the bare private-market floor. See Cartier Santos watches → or see Rolex Datejust watches →
Last updated: August 2026. Prices are pre-owned market asking prices in GBP and vary with condition, box/papers and availability. Descriptive only; not investment advice.