CASIO G-SHOCK Metal Covered GM-2100MWG-1AJR Analog Digital Men’s Watch JAPAN March 8, 2024casioanalog, casio, covered, digital, g-shock, gm-2100mwg-1ajr, japan, men's, metal, watchadmin Shock structure (resist shock). World time 31 time zones (48 cities + UTC). Battery life about 3 years. CASIO G-SHOCK Metal Covered GM-2100MWG-1AJR Analog Digital Men’s Watch JAPAN. Share