Hamilton H40555131 American Classic RailRoad AutoProduct Overview A classical three hand watch featuring tradition, signature style, and American spirit. From the vintage railway clocks of yesteryear to modern wristwatches. Equipped with the H 10 automatic movement, which has a standard power reserve of 80 hours, it showcases a bold dial design reminiscent of steam locomotive wheels. Specifications Product Number H40555131 Caliber H 10 Collection American Classic Movement Automatic Case Size 40mm