This book is about all stainless steel Rolex watches, both modern and vintage. Stainless steel is an alloy composed mainly of iron and carbon that is tough, shiny, but above all ... fashionable. A Rolex watch needs to perform and function well in the most hostile environment. In the course of time, the techniques of stainless steel production have continuously developed. Hence, there are several types of steel that Rolex used, such as Rolesium (a Rolex patent dated May 21, 1932) to make 904L steel today. Technical details, historical profiles and characteristics of all stainless steel Rolex watches will meet your professional needs and also provide a useful guide for investing in these watches.