This is the Momentum Torpedo PRO Watersport Dive Watch with Rubber Dive Strap Features: Solid 316L stainless steel case Screw back, screw down crown Rated to 660FT/200M Super luminous dial and hands Heat-tempered mineral crystal Imported This is a high-performance watch for the serious diver. No-nonsense. No superfluous functions. The clean, luminous dial is designed for maximum legibility, with a discrete diver-down flag. The oversize screw-down, locking crown ensures unmatched reliability and water-resistance. Torpedo Pro: the simplest ideas are often the best ones.