Material

As would be expected, watch cases that are made out of more valuable materials are often worth more than those made with semi-precious metals. A watch movement that is housed in a gold case is likely to be worth much more than a watch housed in a brass case. Any hint of gemstone, or other valuable material, is an adequate indicator that a watch might be of high value. Remember, however, that the movement of the watch is usually the focal point of the watch.