 Also, larger 3/0-size movements were cased at the factory in this way—the Champion, Special, Ace/Maxine, and Atlantic, for example.In the late 1920s, shortly before the Hamilton Watch Company took over, Illinois began commissioning its own unique wrist watch cases.The company cased and boxed its watches at the factory, marking the beginning of what many collectors consider the company's golden era, during which the finest watches were made.