Bulova Maquina Automatic Watch pairs a 46 mm gunmetal stainless steel case with a skeleton black dial for a sporty yet refined everyday timepiece. It features a sapphire crystal, exhibition caseback and 100 m water resistance for reliable daily wear. Key attributes: Black | Gunmetal | Stainless steel | Water-resistant to 100 m (WR 10 Bar) | Sapphire crystal | Automatic movement with 40-hour power reserve | Stainless steel bracelet with double-press deployant clasp | Skeleton dial for visible movement | Open-aperture skeleton dial | Exhibition caseback | Luminous hands and markers | Round 46 mm case | Gunmetal finish | Dimensions & fit: Case diameter: 46 mm | Lug width: 13 mm | Composition & care: Stainless steel (case, bracelet, clasp) | Wipe clean with a soft cloth. Avoid chemicals and prolonged exposure to moisture. Have serviced by an authorized technician as needed.