The Tank watch, the classic timepiece designed by Louis Cartier a century ago, is an icon of modern design. One of the world's first square wristwatches (the first was the legendary Santos designed by Cartier in 1904), its functionality is rivaled only by its timeless elegance; it represents a perfect combination of fine watchmaking and geometric rigor. Over the past century, the Tank has been creatively reinterpreted by the House in many famous models, from the Tank Chinoise to the Crash watch to the Tank Anglaise, while always remaining faithful to Louis Cartier's original concept. This volume celebrates the centenary anniversary of one of Cartier's greatest masterpieces through designs from Cartier's rich archives, historical models, and photographs of famous clients, from Clark Gable and Andy Warhol to Muhammed Ali and Madonna, who have chosen the Tank watch as their favourite timepiece.