Rare Mechanical Automatic Triwa Humanium HU39DAS, Miyota 9015 Movement. Made with stainless steel Humanium metal. Humanium is a material made from recycled gun destruction programs. All watches made from Humanium create new sources of funding for victims and projects aiming to rebuild conflict-torn societies. The strap on the watch is a practically new (worn twice) strap made from recycled materials. It also comes with a worn leather strap, and a new nylon nato strap. The watch has some light scratches from minimal wear.