Invicta I-Force Quartz Chronograph 100M 1516 Mens WatchInvicta I Force Quartz Chronograph 100M 1516 Men's Watch The Invicta I Force chronograph is undeniably forceful in its appearance and built as tough as a nut from the insides. On the outside, its tough as a nail and marries style to superior functionality to create a rugged and refined timepiece. Its fairly large in its size; its attractive and imposing on one hand and pretty much a dapper in its snazzy, elegant form.