From the Marine Star Collection. The Bulova Marine Star men’s watch is a classic timepiece with a legacy stretching back decades. The open heartbeat automatic 21-jewel movement is showcased in the dial aperture and in the exhibition case back. The goldtone, stainless steel case is accented with black, and features a black dial and a flat mineral crystal. The goldtone stainless steel bracelet is perfectly matched for a seamless look, and the watch is water resistant to 200 metres, living up to its name as a timepiece that can go wherever you do without missing a beat.