GG-1000-1A3 | MUDMASTER | G-SHOCK | Timepieces | CASIO- bảo vệ mầm gg1000 ,The "BAR" value indicates the number of atmospheres to which water resistance is ensured. 20 BAR means water resistance to 20 atmospheres. Watches marked "200m" have the same water resistance as 20 BAR watches.GG-1000-1A3 | MUDMASTER | G-SHOCK | Timepieces | CASIOThe "BAR" value indicates the number of atmospheres to which water resistance is ensured. 20 BAR means water resistance to 20 atmospheres. Watches marked "200m" have the same water resistance as 20 BAR watches.