s most covetable trends

Cool Mesh for enhanced breathability

Quartz Series

Adjustable chin strap

SEIKO Men's Dark Gray Dial Black Stainless Steel Band Prospex Speedtimer Chronograph Japanese Quartz Watch - SSC917 Brand_Smith optics s most covetable trendsSEIKO Men's Dark Gray Dial Black Stainless Steel Band Prospex Speedtimer Chronograph Japanese Quartz Watch The Seiko Prospex Black Series Night Speedtimer, inspired by night missions and the intrepid view through a night scope. The newly developed green Lumibrite Pro colouring 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