Casio G-SHOCK GST-S110D-1ADR WatchG STEEL GST S110 Series GST S110D 1A From G SHOCK, the watch brand that is constantly setting new standards for timekeeping toughness, comes G STEEL, a watch series with a new "layer guard structure". Different materials are used for the bezel to create a two layer structure that adds a new dimension of shock resistant. For models that use stainless steel in the upper part, shock absorbing resin is employed in the lower part. If resin is used in the