G-Shock Watch Tough Solar Bluetooth GMW-B5000-1ER. Standing the test of time, the symbolic 1983 square faced watch is reinvented in the GMW B5000. A ground breaking metal shock resistant structure is applied to the classic DW 5000C to maintain G-SHOCKs unique strength. By combining a fine resin cushion below the metal bezel case and cylindrical buttons, impact is dispersed throughout this watch protecting it from damaging while maintaining its 200m water resistance. This timepiece is spectacular in both engineering and its contemporary design, making this a stand out piece.