Casio G-Shock Men's Watch GA-2100-1A1 Analog-Digital GA-2100 Series Carbon Core Guard Structure Vintage collection Preset countdown start times: 1

Preset countdown start times: 1

Power Saving (display goes blank to save power when the watch is left in the dark)

independent design date and week display window at three o'clock

which supports automatic time setting adjustment based on one of six time calibration signals around the globe

a step reminder feature that alerts you when your step count over a specific period is too low

Casio G-Shock Men's Watch GA-2100-1A1 Analog-Digital GA-2100 Series Carbon Core Guard Structure Vintage collection Preset countdown start times: 1Features Carbon Core Guard structure Ever since the first DW 5000C went on sale back in 1983, G SHOCK has continued to push the limits of timekeeping toughness while creating new and original designs. These new models embody these efforts in an attractively thin configuration. These new models inherit the octagon form that was also employed for the original DW 5000C. Analog digital timekeeping comes packed into a no nonsense simple design without