From the Solar G-Steel Black Out Collection. Revel in eclectic sophistication with the G-STEEL fusion of metal and resin components in a popular all-black G-SHOCK. Tough construction meets stylish design in a black ion-plated metal bezel set against a base of jet black. With its slim combination module and Carbon Core Guard structure, the black-on-black take of the GST-B400 is a cool fashion statement ready for whatever you are.