Cartier's newly launched TankMust watch. It Must be a TANK Among all the classic Cartier tank watches, if I want to own a watch that I wear every day, I will definitely choose the TANK Solo, and now this matter may be The latest TANK MUST has changed. This year, the brand has launched a new TankMust series of watches. This TankMust series of watches also uses the brand's iconic square case with a small size of 29.5×22mm, a thickness of 6mm, and a large size of 33.7mmx25.5mm. The dial is silver-plated and sword-shaped blue steel hands, sapphire crystal glass and a unique blue spinel design inlaid on the crown plus a grained calfskin strap, which is more rounded and smooth than the previous line processing. In addition, The watch is also equipped with a quick-release strap function. This design also greatly increases the comfort and convenience of daily wearing.