The original Ventura, launched in 1957, made watchmaking history as the world's first electrical, battery powered watch. Creating an automatic version of a watch famed for its battery powered movement is a bold move, and one that's typical of Hamilton. It's also a fitting tribute to the ultimate rulebreaker and Ventura's biggest fan: Elvis Presley. The H-10 movement that can be seen through the skeletonized dial of this model has a power reserve of 80 hours in a nod to what would have been Elvis's 80th birthday.