GA-B2100-1A G-SHOCK GST-B400CX-1ADR • 1/100-second stopwatch• Alarm• LED

• 1/100-second stopwatch• Alarm• LED illuminator• Water resistant• Stainless steel band• Popular retro design

Transfer step counts and other data tracked on the watch and view them on your phone

Go bold and confident with a strikingly straightforward G-SHOCK in high-contrast black and white

while still providing the advanced functions you love in a compact profile and comfortable fit

A slim design with the same tough G-SHOCK construction

GA-B2100-1A G-SHOCK GST-B400CX-1ADR • 1/100-second stopwatch• Alarm• LEDUpgrade the retro look you love with the octagonal GA 2100 line, which inherits the design concept of the very first G SHOCK, but now with Smartphone Link and Tough Solar power.