Casio Men's G-SHOCK MTG-B3000 Series Rubber Band MTG-B3000B-1AJFProduct Highlights The MTG B3000 features a carbon reinforced resin case that protects the module and evolves the "Dual Core Guard Structure" with metal parts on the exterior. The stainless steel back cover is intricately shaped through multiple processes of pressing, cutting, and polishing. By integrating functions like lug, guard, and button guard into the back cover, a completely new structure and design were achieved, leading to a compact and slim