Upgrade 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.
 
Case size (L× W× H)
48.5 × 45.4 × 11.9 mm
Weight
52 g
Case and bezel material
Carbon / Resin　
Band
Resin Band
Construction
Shock Resistant
Carbon Core Guard structure
Water resistance
200-metre water resistance
Time adjustment
Bluetooth: Connects to a smartphone and automatically adjusts the time
Power supply and battery life
Tough Solar (Solar powered)