GA-B2100C-9ADR

Casio G-SHOCK GA-B2100C-9ADR Unisex Analog-Digital 48.5 × 45.4 × 11.9 mm

The GA-B2100C-9ADR refreshes the slim octagonal 2100 design with Tough Solar charging, Bluetooth smartphone link, and a Carbon Core Guard case. This colourway pairs a black dial with a vivid yellow resin band and matte yellow accents for a bold, street-ready look while delivering reliable, low-maintenance performance.

• Case Size L×W×H: 48.5 × 45.4 × 11.9 mm
• Weight: 52 g
• Case / Bezel: Carbon / Resin; Carbon Core Guard structure
• Band: Yellow resin band
• Glass: Mineral glass
• Dial: Black dial with yellow accents; analog hands and digital subdisplay
• Watch Features: Tough Solar (solar rechargeable); Bluetooth smartphone link (auto time sync, app settings); world time (approx. 300 cities / 38–39 time zones depending on region); 1/100‑sec stopwatch; countdown timer; 5 daily alarms; full auto‑calendar; hand shift function; phone finder
• Water Resistance: 200‑metre (20 bar)
• Power: Tough Solar (solar rechargeable)
• Accuracy: ±15 seconds per month (without smartphone sync)
• Module: 5689