Description
CASIO GA-B2100BEG-1AER is an iconic men’s analog-digital watch from the G-Shock CasiOak series, combining the octagonal silhouette of the legendary first G-SHOCK with modern Bluetooth and solar-power technology. The black design with bold electric green accents on the hands, indices, and strap creates a contrasting, energetic look, while the Carbon Core Guard structure delivers exceptional shock resistance. Bluetooth smartphone connectivity enables automatic time correction and access to approximately 300 world cities.
The 48.5 × 45.4 × 11.9 mm case is made of carbon fiber-reinforced resin (Carbon Core Guard) and complemented by a black resin strap with electric green accents. The model features a Tough Solar-powered quartz movement (Module 5689) with an analog-digital display and Bluetooth connectivity.
Advantages:
➤ solar-powered quartz movement (Tough Solar, Module 5689)
➤ Bluetooth smartphone link (auto time correction, Time & Place, phone finder)
➤ black design with electric green accents
➤ world time (38 time zones)
➤ 1/100-second stopwatch (up to 24-hour capacity)
➤ countdown timer (up to 60 min)
➤ 5 daily alarms
➤ dual LED backlight (Super Illuminator: face + digital display, with afterglow)
➤ Carbon Core Guard shock-resistant structure
➤ auto-calendar
➤ 12/24-hour format
➤ carbon fiber-reinforced resin case
➤ black resin strap
➤ mineral glass
➤ water resistance 200 m (20 ATM)
➤ battery: solar rechargeable (Tough Solar)
➤ accuracy ±15 sec/month (without Bluetooth link)
➤ case size 48.5 × 45.4 × 11.9 mm
➤ weight only 52 g
CASIO GA-B2100BEG-1AER is a combination of iconic CasiOak design, smart smartphone connectivity, and stable solar-powered operation, making this watch an ideal choice for an active, modern lifestyle.






















