Casio G Shock Foggy Forest Green Watch GA 2100FR 3ADR. Introducing new models from G SHOCK, the watch brand that is constantly setting new standards for timekeeping toughness. This new lineup is based on two models the thin octagonal GA 2100 and the sporty combination analog digital GA 2200. The mixed color molded bezels and bands of this series are created using resin of different colors for a unique mixed texture.