Tank Louis "Paris" 78086 - Yellow gold case on leather strap, 24 x 31 mm, original yellow gold folding clasp, white "Paris" dial with roman numeral markers, chapter ring, "sword shaped" hands, hand wound movement. The Cartier Tank, introduced in 1917, redefined watchmaking with a design inspired by the sleek lines of WWI armored vehicles. From the turmoil of the first mechanized conflict emerged a masterpiece of elegance and innovation, an iconic wristwatch that continues to captivate collectors and connoisseurs alike.