Quick answer
The Cartier Santos 100 is a square steel watch Cartier produced from 2004 to about 2018. It marks 100 years since Louis Cartier drew the Santos for aviator Alberto Santos-Dumont in 1904. A replica earns the "1:1" label only if four things match the original: case dimensions, dial print, crown cabochon, and movement type. Most claims of 1:1 do not hold up under a caliper and a loupe.
The Ultimate Guide to Cartier Santos 100 Replica 100
What the Santos 100 is
The Santos 100 sits in the Santos family. It has a square case with eight visible screws on the bezel, Roman numerals, a rail track minute ring, sword hands, and a blue spinel or sapphire cabochon in the crown. The case is thicker than the earlier Santos Galbée. That extra depth is the detail most replicas get wrong.
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Case sizes and references
- Large: about 38 mm wide by 51 mm long. References include W20073X8 in steel and W20107X7 in two-tone.
- Medium: about 33 mm wide. Smaller wrist presence, same dial layout.
- Chronograph: three sub-dials, thicker case, pushers at 2 and 4 o'clock.
- Case thickness on the large three-hand model runs near 10.7 mm. Measure a replica before you trust the listing.
Movements
The three-hand Santos 100 uses Cartier caliber 049. That is an automatic based on the ETA 2892-A2, with about 42 hours of power reserve. The chronograph uses caliber 8630, an ETA 7753 base. A replica with a 2824 or 2892 clone will run at 28,800 beats per hour and sweep the seconds hand. A 21,600 bph movement stutters, and that shows on the wrist.
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What to inspect on a replica
- Case width and length against the numbers above. Ask for caliper photos.
- Dial print. The word CARTIER sits above the center, the Roman numerals are printed, not applied on the steel models.
- Cabochon color and seating. A flat or dull stone is a fail.
- Bezel screws. Eight screws, aligned slots, flush heads.
- Caseback engraving depth and screw spacing.
- Date window font and position at 3 o'clock.
- Weight. A steel large model lands near 130 g on a bracelet. A light watch means a thin case.
Limits of the 1:1 claim
No replica uses a Cartier-made movement. Replica bracelets fit and finish at a lower level than the original. Serial numbers are copied from real watches, so they do not prove origin.
Legal note
Counterfeit watches carry Cartier trademarks. US Customs and Border Protection can seize them at import. Selling them in the US is illegal. Buying one carries risk of loss and no warranty.
Santos 100 versus the 2018 Santos
Cartier replaced the Santos 100 with the Santos de Cartier in 2018. The new model adds QuickSwitch strap release and SmartLink bracelet sizing. Cases are slimmer. If a listing shows a Santos 100 dial on a 2018 case, the watch is a mix of parts, not a copy of either model.