Cartier Tank Louis Cartier 100th Anniversary 18K Rose Gold Cartier WGTA0011 Tank Louis Cartier 100th Anniversary Tank, WGTA0011, the Louis Tank Cartier was the model worn by Louis Cartier himself and is the standard for all Tank models by Cartier, 18k rose gold on a strap with an 18k tang buckle, manual wind caliber 8971MC movement, sapphire crown, white dial with black Roman numerals and blued steel hands, water resistant, size: 33.7mm x 25.5mm (including lugs), thickness: 6.6mm. Like New with Cartier box and papers dated 2019.