Luxuriously refined in stainless steel with a small size, this Tank Must features a black leather strap for a sleek finish.... The Cartier Tank was first made popular by Louis Cartier himself. This icon features a carefully considered design with flat vertical brancards and a sapphire cabochon. Cartier brings exquisite design and innovation to the world of Haute Horlogerie, with renowned timepieces that depict a perfect equilibrium between form and function. Tank Must Watch, Cartier Tank Watch, Cartier Tank Must, Beaded Crown, Tank Watch, Cartier Tank, Cartier Watch, Square Watch, Omega Seamaster