This comprehensive and detailed reference guide to Rolex sports model watches is an indispensable asset to watch collectors and dealers. The only work of its kind, it covers the history of the Submariner, Sea-Dweller, Explorer, GMT-Master, Turn-O-Graph, Milgauss, and Cosmograph watches, from 1952 to 1990. The history of more than 140 vintage models is described in detail, with the watches shown in chronological order. Colour photographs illustrate every watch model, with hundreds of diagrams providing clear and useful information about the development of each model. Twenty-two rare Rolex brochures are shown along with numerous catalog photographs and the associated sale prices of sports models sold at Christie¹s and Sotheby's worldwide from 1997 to 2017. Also included is a current price guide for every model shown in the book. Rolex watches continue to dominate the collecting market, and this authoritative volume, now in its revised and expanded 4th edition, continues to be the essential resource for the Rolex collector, dealer, and auctioneer. AUTHORS: Martin Skeet has been collecting and studying Rolex watches for 25 years. Nick Urul is an internationally recognised watch dealer.