Only few pieces of important information existing in this book, guess if it was properly written it would take 10 pages the most. Author was mainly repeating himself chapter in chapter out in order to gain additional pages for this book, which I wonder why as actually the world and history of watches is rich, and if you want to write a proper book you could fill out with hundreds of well written pages.
I do not recommend this book as a reading material so much, only if you want to say that you read one more book on watches, but there are better written books on this subject out there.