Casio G-Shock [GA-B2100LUU-8ADR]

Specifications:

• Case Size: 48.5 × 45.4 × 11.9 mm
• Weight: 52g
• Case & Bezel Material: Carbon / Bio-based resin
• Band: Bio-based resin band
• Construction: Shock Resistant with Carbon Core Guard structure
• Water Resistance: 200 meters

Power & Connectivity:

• Power Source: Tough Solar (Solar Powered)
• Battery Life:
  • 7 months (normal use without exposure to light after full charge)
  • 18 months (power save mode in total darkness after full charge)
• Bluetooth Connectivity: Smartphone Link for automatic time adjustment

Smartphone Link Features (CASIO WATCHES App):

• Auto Time Adjustment
• Easy Watch Setting
• World Time for ~300 Cities
• Time & Place Function (records current time and location via smartphone)
• Reminder Function
• Phone Finder

Watch Features:

• World Time: 38 time zones (38 cities + UTC), auto DST switching, home/world time swapping
• Stopwatch:
  • 1/100-second precision for first 60 minutes
  • 1-second increments after 60 minutes
  • Elapsed time, lap/split time modes
• Countdown Timer:
  • 1-second measuring unit
  • Countdown range: Up to 60 minutes
  • Start time settings: 1 second to 60 minutes
• Alarms & Signals: 5 daily alarms and hourly time signal

Display & Visibility:

• Double LED Light (Super Illuminator) with selectable duration (1.5 or 3 seconds)
• Neobrite (Luminous coating for better readability in low light)
• Full Auto-Calendar (Up to 2099)
• 12/24-Hour Format & Multi-Language Day Display (6 languages)
• Hand Shift Feature: Moves hands away for a clear digital display view
• Date/Month Display Swapping

Additional Features:

• Mute Function: Button operation tone on/off
• Power Saving Mode: Display turns off in darkness to save energy
• Battery Level Indicator
• Accuracy: ±15 seconds per month (without mobile link)