Hamilton H60515533 Khaki Field Pioneer AutoProduct Overview The Khaki Pioneer Auto is a model that merges past and present watchmaking techniques. It features a sloped dial ring, a large crown, and a leather strap designed with vintage stitching and buttons. While it has a classical style, it also incorporates modern features such as the dedicated H 10 automatic movement, scratch resistant sapphire crystal, and a see through case back that allows you to admire the movement's mechanics.