Casio created a multi-functional Edifice EFR-539BK watch inspired from motor sports. Evolved through the power of electronics with striking appearance by blending a dynamic form and intricately detailed watch face, this watch features a vast array of functions perceived through advanced technology that runs the uniquely designed disk dial & watch hands. EFR-539BK has luminous coating that provides illumination in the dark. It has tough and durable stainless steel wrist strap that gives your watch that classic appeal. Large faces and cases are complimented for powerful designs that really stand out exceptionally on your personality.