英語と日本語の併記本です。日本語でも読めます。This book is a comprehensive guide to the history of military watches by the Japanese watchmaker Seiko. Seiko's military watches include many products from the time of the Russo-Japanese War, World War II, and the post-war period to the present day, but until now there has been no book that covers them all. If you are interested in the history and value of your Seiko military watches, this book is full of information that we recommend. The historical products are explained in detail, period by period. The book is full of useful information for watch collectors antique watch dealers. The text is written in both English and Japanese.