The movement of a watch is usually the most valuable element of a watch, but cases should factor into an evaluation as well. Whether it is a hunter case or an open face case, a watch without a quality case is almost always less valuable. Locating the manufacturer of the case of a watch is usually much easier than pinning down a movement manufacturer. Look for a name on the back of the case or near the bottom of the watch. Next, determine what type of material the case is constructed from.