Original Casio G-SHOCK outdoor series men's watch GST-B100 series Casio G-SHOCK--classic shockproof dial design, one-button lighting mode, with strong colors that impact the visual sense, shockproof, anti-magnetic, daily waterproof, full-automatic calendar, the watch body is made of special materials as always, the effect is absolutely quite satisfactory, it is rare in all the series of watches today, the watch is absolutely amazing