Created by Louis Cartier in 1917, the Tank watch is an icon of modern watchmaking. The refined design of this wristwatch, combining geometry and harmony, defines its strong identity. Immediately recognizable and always in step with the times, the Tank watch has been reinterpreted for more than a century through multiple variations that are forever faithful to the spirit of the original design, from the Tank Cintrée to the Tank Chinoise, and from the Tank Américaine to the Tank Française. Featuring extensive archival documents along with previously unpublished photographs, this volume reveals, through the passionate pen of a true connoisseur, the most significant Tank timepieces, their technical characteristics, and the famous clients who, over time, have been seduced by the timeless watch. This new edition, augmented with a chapter on the models created since 2017, offers a journey into the heart of the legend.