A pocket watch (or pocketwatch) is a watch that is made to be carried in a pocket, as opposed to a wristwatch, which is strapped to the wrist. They were the most common type of watch from their development in the 16th century until wristwatches became popular after World War I during which a transitional design, trench watches, were used by the mi... Found on http://en.wikipedia.org/wiki/Pocket_watch
General term for a portable timekeeper carried in the pocket, first made in the mid to late 16thC. Earlier watches had been worn hanging on a chain around the neck. Pocket watches were replaced by wristwatches from the 1920s. See also hunter-cased watch. Found on http://www.encyclo.co.uk/visitor-contributions.php