Louis Cartier introduced the Tank line-up in 1917, inspired by the latest Renault tanks of the era. The collection has expanded over the years to incorporate variety while keeping the same structured aesthetic of the original design. In excellent condition and recently serviced. All components are factory original. Photos of actual watch. Cartier Calibre 120, Base ETA 2000, 20 Jewels. Comes with the original box, papers, and instructions. (Out of stock)