Posted 2 years ago
I purchased this watch at the Cartier 5th Avenue NYC store in the mid- 1970s. I know it is gold vermeil and is stamped on the back
"PLAQUE ORO 20 M" or "PLAQUE OR 020 M". Does anyone know what it means? Also, it does not say "MUST" on the face like most of the other 70s era tanks I've seen. Is that of any significance? Thanks for your insight.