An uncompromising redesign of one of bulova’s most celebrated models, the new men’s marine star series b watch strikes the perfect balance between form and function. Blue-to-black gradient sunray dial with date window and luminous hands and markers 41. 0mm polished stainless steel case uni-directional rotating bezel with bi-color aluminum insert sapphire crystal automatic movement; 42-hour power reserve stainless steel bracelet; fold-over safety clasp water-resistant to 200 meters