U.S. Watch Co. (Waltham, Mass) Grade 80

Grade 80 is a 17j Openface watch maufacturered by U.S. Watch Co. (Waltham, Mass). The size 18s, Model 1892 movement features a nickel finish and is adjustedtemperature. U.S. Watch Co. (Waltham, Mass) introduced this particular grade to the market August 1893?. During the time the watch was manufactured, it would have qualified for railroad service and is considered to be railroad grade. Each movement was fitted at the factory with a double-sunk dial.