SEIKO Selection SBTM317 Solar radio correction stainless watchProduct Highlights strong> By adding steps to the lugs of the case, we emphasize the play of light and shadow, creating a sharp and sophisticated look. Using separate metal parts for the abbreviations enhances the texture of the indices. We have also redesigned the hands and added Lumibrite for improved visibility, even in low light conditions. Product Overview The SEIKO SELECTION S Series is dedicated to timeless designs that transcend trends.