This volume retraces the history of the famous Swiss watch house Zenith, documenting events and production over the course of the past 140 years. Setting out from the first pocket watches, which after the 30s gradually gave way to more modern wrist contraptions--accessories initially seen in a very negative light--the book documents the invention of both the revolutionary 17 lignemovement and one of the sector's best-known calibers, the legendary El Primero. With more than 700 illustrations with detailed captions, Zenithalso includes the increasingly specialized models of later years, including waterproof casings, chronometers, chronographs with special dials and timepieces for the military, sport and medical sectors. Not to mention anecdotes, memorabilia and rare period advertisements.