Casio G-Shock [GD-010-1A1DR]

Case Size (L × W × H): 54.9 × 51.9 × 16.1 mm
Weight: 65 g
Case and Bezel Material: Bio-based Carbon / Bio-based resin
Band: Bio-based resin band
Construction: Shock Resistant, Carbon Core Guard structure
Water Resistance: 200-meter water resistance
Power Supply and Battery Life: Approx. battery life: 10 years on CR2025
Glass: Mineral Glass
Compatible Band Size: 145 to 215 mm
World Time:

• Multi Time (4 different cities)
• 31 time zones (48 cities + coordinated universal time)
• Daylight saving on/off
• Home city/World time city swapping
  Stopwatch:
• 1/100-second stopwatch
• Measuring Capacity: 23:59'59.99''
• Measuring Modes: Elapsed time, split time, 1st-2nd place times
  Timer:
• Countdown timer
• Measuring Unit: 1/10 second
• Countdown Range: 24 hours
• Countdown Start Time Setting Range: 1 second to 24 hours (1-second increments, 1-minute increments, and 1-hour increments)
  Alarm/Hourly Time Signal:
• 5 alarms (daily or one-time)
• Hourly time signal
  Light:
• LED backlight (Super Illuminator)
• Auto light switch, selectable illumination duration, afterglow
  Light Color: White
  Calendar: Full auto-calendar (to year 2099)
  Mute Feature: Button operation tone on/off
  Accuracy: ±15 seconds per month
  Other Features:
• 12/24-hour format
• Regular Timekeeping:
  • Hour, minute, second, PM, month, date, day