Tank Louis Cartier
Tank is a legendary wristwatch first created 1917 in the Art Déco style by Louis Cartier. The then groundbreaking design (common watches at the time were consistently round) was inspired by the silhouette of a bird's-eye view of a tank and features parallel vertical side bars. Most of the models, especially the classic ones, have 12 very distinctive Roman numerals and a rectangular chemin de fer-minuterie. Other features: Blued hands; polygon crown decorated with faceted sapphire-cabochon.