
Product Description
Go bold, tough, and intense with the G-SHOCK black and red collection. The high-saturation red LCD stands out against the black bezel, band, and dial for striking visibility and daring design. Activate the backlight to illuminate the display in low light and make a powerful statement in all black with a vivid touch of red—G-SHOCK strength and style.
| Case & Exterior | |
|---|---|
| SKU | GA-B2100BBR-1A |
| Case Size (L × W × H) | 48.5 × 45.4 × 11.9 mm |
| Weight | 52 g |
| Case & Bezel Material | Carbon / Bio-based resin |
| Band | Bio-based resin band |
| Construction | Shock Resistant, Carbon Core Guard structure |
| Water Resistance | 200-meter water resistance |
| Time Adjustment | Bluetooth® connection with automatic time adjustment |
| Power Supply | Tough Solar (solar powered) |
| Glass | Mineral Glass |
| Compatible Band Size | 145–215 mm |
| Other | Neobrite |
| Country of Origin | China |
| Movement & Features | |
|---|---|
| Smartphone Link / App |
CASIO WATCHES app: Auto time adjustment Easy watch setting ~300 world time cities Time & Place, Reminder, Phone finder |
| World Time |
38 time zones (38 cities + UTC) City code / name DST auto switching Home / World time swap |
| Stopwatch |
1/100-second 00'00''00–59'59''99 (first 60 min) 1:00'00–23:59'59 (after) Elapsed & lap/split times |
| Countdown Timer |
1-second unit 1 sec–60 min 1-second & 1-minute increments |
| Alarms |
5 daily alarms Hourly time signal |
| Light |
Double LED (Super Illuminator) Selectable 1.5 / 3 seconds Afterglow LED: White |
| Calendar | Full auto-calendar (to 2099) |
| Mute / Energy Saving |
Button tone on/off Power Saving (display goes blank in the dark) |
| Battery / Run Time |
Battery level indicator Approx. 7 months (normal use) Approx. 18 months (Power Save on, in the dark) |
| Accuracy | ±15 seconds per month (without Mobile Link) |
| Other Features |
Hand shift feature 12/24-hour format Date / month swap Weekday display in 6 languages |
| Regular Timekeeping |
Analog: 2 hands (hour, minute — moves every 20 seconds), 1 dial (battery / mode) Digital: hour, minute, second, pm, month, date, day |
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