Purchased this book and read it cover-to-cover. Refer to it regularly as well. Solid reference, but all images are in B&W and would be MUCH more effective in color, even if cost would be more. B&W is simply not a good substitute for color when dealing with images of watch dials, watch movements, inscriptions on watches, and comparison's between real and counterfeit Rolexes where the subtleties are important. Book needs editing and polishing