The G-SHOCK GM2100 models inherit the octagon form that was employed for the original DW-5000C. Analog-digital timekeeping comes packed into a no-nonsense simple design without sacrificing G-SHOCK level toughness. High-strength resin material, reinforced with carbon fibers, makes it possible to create a case that is a mere 11.8 mm thin, which is the thinnest among G-SHOCK combination models. Other features include water resistance to 200 meters, shock resistance, and a double LED light. The resin strap secures with a buckle clasp.