The large size has a diameter of 33*27mm, and the small size has a diameter of 31*24mm. Cartier is a well-known hot commodity in the purchasing circle, especially the Cartier Blue Balloon. As one of the most popular models in the watch circle, it has always maintained an unshakable posture. Compared with the popular models, the Cartier Tank is obviously much more low-key. Whether in terms of price or style, it is difficult to compete with the Blue Balloon. But its long history still cannot cover up its edge. The Cartier Tank watch was born in 1917. This year happens to be the 100th anniversary of its birth. It can be called a watch that has lasted for a hundred years. Its design was inspired by the strong and powerful lines of the tank. At that time, it was the First World War. Incorporating such elements is of great historical significance, and it is also something that we who live in peacetime can never understand. But this does not affect it from becoming a classic work handed down from generation to generation. It uses sharp lines and the aesthetics of the watch to create an extremely elegant watch with exclusive supply.