Introducing the latest iteration of the Black Series designs: the Seiko Prospex Black SeriesNight Speedtimer,inspired by night missions and the intrepid view through a night scope. The newly developed greenLumibrite Procolouring on the markers and hands is designed for increased visibility, allowing time to be read clearly in dark conditions. It displays the same colour in light and dark, for consistency and quick recognition, regardless of the light. This solar powered chronograph timepiece is from the Prospex Speedtimer watch collection which represents Seikos professional timekeeping heritage. Conveniently solar-powered; this watch charges from both natural and electric light. In the 1960s, Seiko announced itself on the international sports timing stage with a whole new generation of high-precision equipment endorsed by international sports federations at many of the worlds leading sports events, the Speedtimer designs recognise this timekeeping heritage. Prospex timepiece