METAL COVERED - GM-2100 | CASIO,METAL COVERED - GM-2100 | CASIO,Casio G-SHOCK GM-2100-1AJF GM-2100-1A GM-2100 Analog Digital Quartz Silver | eBay,G-Shock Full Metal 2100 Series Chronograph Watch – Smyth Jewelers,The popularity of G-SHOCK increased sharply in the mid-1980s, worn initially by skateboarders for their robustness before gaining prominence in street culture and becoming an integral piece of wrist wear in the