This book is about all stainless steel Rolex watches, both modern and vintage models. Stainless steel is an alloy composed mainly of iron and carbon that is resistant, shiny but above all… fashionable. A Rolex watch must function and function even in the most hostile environment. Over time, stainless steel manufacturing techniques have continually evolved. Therefore, there are different types of steel that were used by Rolex, such as Rolesium (a Rolex patent dated May 21, 1932) to arrive at 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.