The v7 label on a replica Cartier Ruban 31mm tells you which revision batch a seller is offering. It does not tell you the watch is good. Version numbers get bumped when a factory fixes a known flaw, and they also get recycled as marketing. Treat v7 as a question to verify, not a badge.
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Start with the genuine reference. Cartier publishes case size, material, and crystal for each Ruban variant, and that spec sheet is your baseline. A 31mm rep should measure 31mm across the case at its widest point, not roughly 31 with a fat bezel eating the difference.
What v7 usually changes
On Cartier reps, version jumps tend to land on the same handful of fixes: a thinner bezel, a lower crystal dome, deeper caseback engraving, better bracelet articulation, and dial printing with correct spacing. Ask the seller which of those v7 addressed. A vague answer is your first red flag.
Case and crystal
- Ask for caliper photos. Confirm 31mm across the case and a lug width that matches the reference.
- The crystal should sit close to flush. A tall dome or a milky edge under light points to cheap sapphire or missing AR coating.
- Check the crown cabochon. The blue spinel should be domed, set straight, and even in tone. Flat, plastic-looking cabochons are a common tell.
Dial and hands
- Roman numerals: check stroke weight and whether they sit on the same radius.
- Minute track: spacing should stay even all the way around. Crowding near 12 is a bad sign.
- Hands: the blued finish should look uniform, not painted on. Sword tips should be crisp.
- Date window, if the reference has one: check font, centering, and magnification.
Bracelet and clasp
The Ruban bracelet links should move without rattle and without stiff spots. Clasp engraving should be deep and clean, not shallow laser etching. Compare the taper against photos of the genuine bracelet at the same angle.
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Movement and water resistance
Know what the genuine uses before you judge the rep. If the replica runs a different movement, that is a spec difference, not automatically a scam, but price it that way. Do not trust a claimed depth rating on any replica. Have it pressure tested or keep it away from water.
Red flags
- No macro photos and no video under daylight.
- v7 in the listing title while the QC photos show earlier parts.
- A price far under the going rate for that batch.
- A seller who will not send a timestamped photo or a short video.
Before you pay
Ask for daylight video, a photo on a scale, and a close-up of the caseback. Compare against genuine photos at matching angles, not against other replicas. Then check your local law. Selling or importing counterfeit goods carries real penalties in the US and EU, and customs seizures happen.