Home » Watches » CASIO g-shock tough solar radio mens watch CASIO g-shock tough solar radio mens watch December 17, 2013 Watches no comments A built-in radio signal receiver ensures that the exact time is displayed across Europe, The United States and Japan and China. A Light-emmiting diode (LED) is used to illuminate the watch face. Facebook Twitter Google+ Pinterest Amazon LinkedIn Link Facebook Twitter Google+ Pinterest Amazon LinkedIn Facebook Twitter Google+ Pinterest Amazon LinkedIn