Casio G-Shock Carbon Core Guard Earth Tone Navy Blue AP CasiOak Watch GA2110ET-2ADRCasio G Shock GShock Carbon Core Guard Earth Tone Navy Blue AP CasiOak Watch GA2110ET 2ADR Introducing the Earth Tone Color Series. The basic design combines a slim case in navy blue with an octagon double molded bezel decked out in a gray. Carbon Core Guard structure Ever since the first DW 5000C went on sale back in 1983, G SHOCK has continued to push the limits of timekeeping toughness while creating new and original designs. These new models