: G-Shock GMB2100 Product Details : ???? G-Shock GMB2100. 7A In Stock???????? G-SHOCK Part No. GMB2100 Drive system Digital Material: case Metal Material: Belt Metal Windshield Mineral glass LED light Countdown timer Specifications Antimagnetic Watch (JIS class 1) Impact resistant structures (shock resist) 20 ATM water resistant -Case-bezel material: resin Resin band -Stopwatch,Alarm,day&dates