A pocket watch is a timepiece that is kept in the pocket rather than worn on a wrist. The pocket watch usually has a chain to connect to a certain clothing, so the watch would not fall out of the pocket and get broken. This watch was popular before the wristwatch came. Because of wristwatches, the pocket watch became less common and popular. Still, some people today wear pocket watches, and a golden pocket watch is often a token of a person's retirement. It is thought to be invented by Peter Henlein.