Casio G-Shock GA-B2100 Tough Solar Bluetooth Watch

Experience the perfect fusion of retro design and cutting-edge technology with the CASIO G-SHOCK GA-B2100 Solar Bluetooth Series, an upgraded version of the iconic GA-2100 “CasiOak.” This model keeps the beloved octagonal bezel and slim silhouette but introduces two major advancements: Tough Solar power and Smartphone Link Bluetooth connectivity. Designed for durability, convenience, and modern functionality, this timepiece is ideal for everyday wear, sports, travel, and outdoor use.

The GA-B2100 series features a carbon-core guard structure, 200-meter water resistance, shock resistance, and double LED illumination for exceptional readability in dark environments. Connect the watch to your smartphone via Bluetooth to automatically sync the time, adjust world time settings, manage alarms, and more through the CASIO WATCHES app.

With 38 time zones, 5 daily alarms, a 60-minute countdown timer, and a 1/100-second stopwatch, the GA-B2100 is built for performance. The Tough Solar system ensures long-lasting power—up to 18 months on a full charge without light—making it one of the most reliable G-SHOCK models ever created.

Whether in classic black, stealth black, navy blue, forest green, or vibrant yellow, the GA-B2100 collection offers a bold style for every personality.