Hamilton H24555381 Ventura Elvis80 AutoProduct Overview Released in 1957, the Ventura revolutionized watch history as the world's first battery powered wristwatch. The groundbreaking battery movement freed people from the act of "winding a spring." It features decorations that pay homage to its devoted user, the unconventional star Elvis Presley. The H 10 movement, visible through the skeleton dial, boasts a standard power reserve of 80 hours, in celebration of Elvis's 80th birthday.