S1 SPORT CHRONO Model 6490 Movement: Professional Swiss made chronograph quartz movement with big date * 3 jewels Case and dial: 52mm * Solid stainless steel case * Screw down stainless steel case back * Flame fusion crystal * Stainless steel crown with etched logo * Stainless steel special engineered pushers * Genuine mother of pearl dial * Date display * Tritnite® luminous hands * Black ionic plating Band:High grade polyurethane band with stainless steel buckle with etched logo Water resistant: 100 meters