Vintage American & European Wrist Watch Price Guide Ehrhardt Planes 336pp An excellent reference guide for collectors, dealers, and horology enthusiasts interested in vintage wristwatches from both American and European manufacturers. Written by respected watch authorities Sherry Ehrhardt and Peter Planes, this comprehensive guide provides valuable information for identifying and researching collectible wristwatches. Spanning 336 pages, the book covers a wide variety of vintage wristwatch brands and models, featuring identification details, historical information, illustrations, and pricing references. It serves as a useful resource for collectors seeking to learn more about the history, rarity, and collectibility of vintage wristwatches.