Casio G-Shock Quartz Movement Black Dial Watch GMAS120MF-1A WomenCasio G Shock Quartz Movement Black Dial Ladies Watches GMAS120MF 1A. 49 mm resin round case with black dial and mineral crystal. Luminescent hands and markers. Minute marker around the rim, day indicator at the 3 o'clock position and logo beneath the 12 o'clock position. It comprises index markers in addition to the hour, minute and second clock hands. 16 mm case with push button crown and 20 mm wide black strap including a buckle clasp. Quartz