The G-Shock 2100 Series GBM2100A-2B features a blue colorway, constructed with bio-based resin and stainless steel.

• Bio-based resin band
• Mineral glass
• Shock resistant
• 200-meter water resistance
• Tough solar-powered
• Wireless linking using Bluetooth
• Casio watches apps
• 300 time zones
• 1/100-second stopwatch
• Countdown timer
• 5 daily alarms
• Hourly time signal
• Full auto-calendar
• Button operation tone on/off
• Power saving and battery level indicator
• Hand shift feature
• 12/24-hour format
• Dimensions: 1.94 L × 1.75 W × 0.47 H