To many of us, the wrist watch is an old technology that seems to have always been around. In truth, the wrist watch was first widely used during World War I. Before the Great War, most men used large pocket watches, pulling them from a waist pocket as needed. The war and its demand for coordinating quick and precise attacks changed this popular trend. To help commanders watch the time with gun in hand, the pocket watch was shrunk and strapped to the wrist. When the war ended, the trend simply continued.