Casio GA1000-1A second hand is off | WatchUSeek Watch Forums
G-SHOCK GA-900-1ADR Casual Men Digital Watch, Resin Band, 31 Time Zones, Selectable LED Illumination, 200m Water Resistance, Shock Resistant, Up to 7 Years Battery Life, Black /Yellow | GA-900-1ADR Buy, Best Price
How to set up Casio G-Shock GA-100 (user manual, user guide)