This maquina automatic men’s watch from bulova offers daringly avant-garde design. With its mechanical heart and unrivaled modern form, this timepiece offers a uniquely bold individual expression of style. 40mm tonneau-shaped gold-tone stainless steel case; transparent case back black textured dial; luminous hands and markers; central aperture double-curved sapphire crystal automatic movement; 42-hour power reserve stainless steel bracelet; push-button deployment closure water-resistant to 100 meters