Tough Solar and Bluetooth connectivity are added to the mix for the first time.
REVIEW: G-Shock GA-B2100 “CasiOak” – Professional Watches
Casio gives the GA-2100 G-SHOCK the metal treatment with the new GM-B2100 - Potions - For Your Inner Geek
G-SHOCK] GA-B2100 — CasiOak with Bluetooth and Tough Solar
The new G-Shock GA-B2100 Adds Serious Functionality To The CasiOak Design
Review Of G-Shock CasiOak GA-B2100
REVIEW: G-Shock GA-B2100 “CasiOak” – Professional Watches
Casio Debuts G-Shock GA-B2100 Watch Series
Colourful Backplate for the GA-2100/ B2100 CASIOAK
G-Shock GM-B2100: Full Metal CasiOak with Screw-Back, Tough Solar, Bluetooth