Casio G-Shock Men's Watch GA-2100-1A1 Analog-Digital GA-2100 Series Carbon Core Guard Structure Vintage collection independent design date and week

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

Preset countdown start times: 1

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

the pink of the twilight sun reflecting off the water

Casio G-Shock Men's Watch GA-2100-1A1 Analog-Digital GA-2100 Series Carbon Core Guard Structure Vintage collection independent design date and weekFeatures 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