Limited Edition of 1000 Pieces. Ball Watch Company Roadmaster Marine GMT Limited Edition DG3030B-S7CJ-BK. Innovation for fearless exploration, a belief thats not only held dearly in the BALL Watch family, but also fostered the creation of the Roadmaster Marine GMT series. Engineered to the specifications of a 35 year Navy Mariner veteran, its the worlds first GMT timepiece with day and date functions, delivering utmost functionality. The pioneering quick-set GMT push buttons revolutionize the way GMT hand is adjusted with its ease of use. The tough titanium material and COSC certified mechanical movement guarantee perfect performance in the most imperfect situations. Topping off with the darkness conquering luminosity of the micro gas tube. The watch that once ran Americas railroads now empowers world explorers to live freely and fearlessly.