The Timepiece Journal » Santos

Cartier watches — the Tank, Santos, and Ballon Bleu — are among the most counterfeited luxury timepieces in the world. This guide covers 11 specific authentication tests to verify any Cartier watch before buying.

Cartier invented the wristwatch in 1904. The complete 2026 guide to Cartier’s five essential collections — Santos, Tank, Ballon Bleu, Panthère, and Drive de Cartier — with prices, history, and buying advice.