A fake Cartier Santos 100 is a replica of Cartier's large square-cased Santos model, built to copy the look of the original without being made or sold by Cartier. It carries no Cartier warranty, no service history, and no claim to being genuine. What separates one fake Cartier Santos 100 from another is grade, meaning the case finishing, dial printing, bracelet construction, and the movement inside.
What the Santos 100 name actually refers to
Cartier introduced the Santos 100 in 2004 to mark a century since Louis Cartier designed a wristwatch for the aviator Alberto Santos-Dumont. The line ran until 2018, when Cartier replaced it with the current Santos de Cartier collection. That timeline matters when you shop, because most replicas on the market copy the older Santos 100 case: thicker, squarer, and heavier than the newer Santos de Cartier.
When a listing says Santos 100, ask which reference and which size. The original family included a mid-size and a large size, plus steel, two-tone, and solid gold versions. A replica maker who cannot tell you which reference it copied usually cannot tell you much about build quality either.
Replica grades explained
- Budget quartz builds: stamped cases, printed dials that fade, hollow bracelets, and a battery movement. They look right from two feet away and wrong in the hand.
- Mid-tier automatics: solid stainless steel cases, sapphire or mineral crystal, and a generic automatic movement. Bezel screws often sit slightly off, and the bracelet edges feel sharp.
- High-end 1:1 replicas: closer case proportions, polished and brushed surfaces that match the pattern of the original, applied dial markers, and a movement that mimics the beat rate and sweep of the genuine caliber.
Grade is the whole conversation. Two watches can share the same photos and differ by hundreds of dollars based purely on how the case was finished and what sits behind the caseback.
What to compare against the real watch
- Case shape: the Santos is a square with a curved profile, and the curve matters. Flat-sided replicas read as fakes instantly.
- Bezel screws: they should be evenly spaced and aligned with the case lines.
- Dial printing: Cartier's Roman numerals have consistent stroke weight, and the secret signature is placed by hand on the original.
- Crown: a blue synthetic spinel cabochon, set cleanly, not glued in.
- Bracelet: Santos bracelets use exposed screw heads on the links. On cheap replicas these are decorative and sit crooked.
- Movement: a genuine automatic movement sweeps continuously. A quartz tick is the fastest giveaway.
Before you buy checklist
- Ask for photos taken in daylight, not studio renders.
- Request a video of the second hand sweep.
- Confirm the case diameter and thickness in millimeters, not "large" or "small".
- Ask what movement is installed and whether it is serviceable.
- Check the seller's policy on dead-on-arrival watches and returns.
The legal side in the United States
Selling a replica as a genuine Cartier is trademark counterfeiting, which carries civil liability and criminal penalties, and US Customs can seize counterfeit imports. Buying a replica for personal wear is a different question than reselling one as real, but the line is worth understanding before money changes hands. Never describe a replica as authentic, and never pass one along in a private sale without saying exactly what it is.
Frequently asked
Is a fake Cartier Santos 100 the same as a first copy?
In the replica market the terms overlap. First copy and 1:1 usually signal the top grade, while fake is the catch-all term for anything that imitates the original.
Can a jeweler tell it apart?
Yes. Movement finish, caseback engraving depth, and bracelet tolerances are the usual giveaways under a loupe.
Does the replica hold value?
No. Genuine Cartier watches have a secondary market. Replicas do not, and they should be bought as wearable items rather than assets.