Cartier Santos
10 % below RRP
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ℹ️ 1-month trend
Price change over the past 30 days. Shows the short-term market movement — relevant if you want to buy or sell soon.
ℹ️ 4-month trend
The central metric behind the momentum score. It filters out short-term swings and shows the true, medium-term market trend of this reference.
ℹ️ Volatility
Annualised price fluctuation. Below 10 % = very stable, 10–20 % = normal, above 20 % = volatile. With high volatility the price can change quickly — in both directions. Be cautious about buying without checking the current price.
ℹ️ Momentum score
ChronoCheck's own indicator from 0 to 100, calculated from the 4-month trend, volatility and market direction.
- Above 60 — Upward trend. Good time to sell, prices are rising.
- 40 – 60 — Neutral. Stable price level, no pressure to act.
- Below 40 — Downward trend. Wait or enter at a good price.
ℹ️ Investment Grade A/B/C/D
ChronoCheck's own rating for each reference. A 0–100 point scale, made up of four weighted components:
- Momentum (40 pts) — trend strength from the momentum score.
- Liquidity (25 pts) — number of active live listings.
- Stability (20 pts) — inverse volatility — the calmer, the better.
- Source robustness (15 pts) — number of independent market sources.
- A · 75+ Trend is right, liquidity good, data broad.
- B · 55–74 Solid, but one component weaker.
- C · 35–54 Average, volatility or market breadth weigh on it.
- D · below 35 Downward or too little data — a collector's piece.
Not investment advice. Pure data analysis from aggregated market sources.
What if you had bought back then …
What would a purchase at the median market price back then have become — at today's level of $13,549. A pure return calculation, excluding insurance, servicing and transaction costs.
Data from an aggregated median time series (watch_market_daily). CAGR = Compound Annual Growth Rate, normalized to 365 days. Not an investment recommendation.
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Technical data
Lift angle 52° — important for timing-machine diagnosis: with this value a watchmaker can correctly measure rate deviation, amplitude and beat error. ChronoCheck verifies such technical details directly from the manufacturers' factory specifications.
Cartier Ref. W2SA0009 — Variants and collector names
Known as: Two-Tone Santos Large, Santos Bicolor Large, Gold-Steel Santos
Production phases and changes
- 2018: Market launch of the Santos de Cartier Large Two-Tone (W2SA0009) at SIHH 2018
Movement variants
- 1847 MC (?–today) · 28800 bph
Bezel variants
- W2SA0009-Bezel-YG-Steel-Screws "Two-Tone Screw Bezel"
Dial variants
- W2SA0009-Dial-Silver-Roman-Date — Roman numerals (black) / date at 6 o'clock / CARTIER inscription / Swiss Made
Crystal variants
- Saphirglas-Santos-Large-39.8
Bracelet variants
- Kalbsleder-Zusatzband mit QuickSwitch (Stahl-Faltschließe) Ref. Santos-Large-TwoTone-Calfskin-QuickSwitch
- Santos SmartLink Steel/Gelbgold Ref. Santos-Large-TwoTone-SmartLink
The W2SA0009 made its debut at SIHH 2018, and with it Cartier introduced two innovations simultaneously that no other manufacturer had combined in quite this way: QuickSwitch for tool-free strap changes and SmartLink for stepless size adjustment. Both in a single watch — and in early 2018, in the segment under $11,430 that was a genuine competitive edge no one else could match.
## What Gives the Two-Tone Its Own Personality
The Two-Tone Santos Large — known among collectors as the Santos Bicolor Large or Gold-Steel Santos — pairs yellow gold and steel across the bezel and bracelet. The bezel screws alternate between gold-plated and polished finishing, which gives the 37 mm case a noticeably different presence than the all-steel version. The silver-toned dial with Roman numerals and date display has remained untouched since 2018 — Cartier hasn't changed a thing.
## Calibre 1847 MC: the Quietly Capable Heart
The W2SA0009 runs on the in-house Calibre 1847 MC, an automatic movement with 23 jewels and 191 components. No tourbillon, no complications — a movement built for longevity, and one that positions Cartier well at this price point. Power reserve stands at 42 hours, which comfortably covers a long weekend.
## What the Market Has Shown Since 2018
On the secondary market, the W2SA0009 currently trades between $4,801 and $6,629 depending on condition and completeness. The Two-Tone holds its value more steadily than the all-steel variants — the gold content attracts a different buyer profile and noticeably reduces turnover frequency on platforms like Chrono24. Buyers hunting for value should keep an eye on examples without box and papers, which regularly come up $686 to $914 below full-set pricing.
Brand profile: Cartier
Cartier watches (Santos, Tank, Ballon Bleu) are popular counterfeiting targets. The characteristic design (Roman numerals, blue sword hands) is recognizable, but also replicable.
- Sapphire cabochon crown: on genuine pieces SET IN METAL (bezel setting), on fakes usually GLUED. Test: loupe — adhesive residue around the edge = fake.
- Bracelet screws: genuine Cartier ALWAYS has visible screw slots. Pins = fake.
- 'Swiss Made' at 6 o'clock: MICROPRINT directly below the 6 o'clock marker. Fakes often omit it or print it crooked.
- Guilloché pattern: under 10x loupe EXACTLY parallel and uniformly deep. Irregularities = fake.
Serial number format: Cartier serial numbers: alphanumeric on the case back. Older models: number between the crystal ring and case. Cartier Passport included with new purchase.
Further sources
Buying guide: Cartier Santos
Market situation and price range
At $13,692 the Santos sits in a segment where first owners sell regularly — clean pieces with box and papers are not uncommon. The jump from "good" to "very good" usually costs 1,000 to 2,000 euros more at purchase. You get that premium back on resale if the condition is preserved.
Where the price stands
The price of the Santos has risen by +30.6% over the past four months. Anyone selling now hits a good window. If you want to buy: no need to wait — the market is currently more hot than cold, and a clear end to the trend is not in sight.
Watch out for swings: This reference has an above-average volatility of 71.1 percent. In concrete terms: the price can move by several hundred euros within a few weeks. Check the current value before buying or selling — old listings or auction results from two months ago are of little help.
What to look out for when buying?
- Authenticity: The serial number and reference on the case must match the papers. A professional authenticity check of the Cartier Santos reliably rules out counterfeits.
- Condition: Check scratches on the case and bezel — professional refurbishment can leave traces.
- Service history: A documented service by the manufacturer or a certified watchmaker increases the value.
- Scope of delivery: Box, papers and warranty card make a noticeable price difference on the Santos.
- Independent certification: The CPS-52 standard covers 52 checkpoints — from the serial number and the timing machine to water resistance. The result is secured on the blockchain and can be verified at any time.
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