Casio G-Shock GA-100GGB-1A9

• Case size (L× W× H):

   55 × 51.2 × 16.9 mm

• Weight: 72 g

• Case and bezel material:

  Resin

• Band:

  Resin Band

• Construction:

  Shock Resistant

  Magnetic Resistant

• Water resistance:

  200-meter water resistance

• Power supply and battery life:

  Approx. battery life: 2 years on CR2025

• Glass:

  Mineral Glass

• Compatible band size:

  145 to 215 mm

• World time:

  World time

  29 time zones (48 cities +coordinateduniversal time), daylight saving on/off, home city/world time city swapping

• Stopwatch:

  1/1000-second stopwatch

  Measuring capacity: 99:59'59.999"

  Measuring modes: Elapsed time, lap time, split time

  Others: Speed (0 to 1998 units/hour), Distance input (0.0 to 99.9)

  Mach indicator (speed exceeding 1225 units/hours)

• Timer:

  Countdown timer

  Measuring unit: 1 second

  Countdown range: 24 hours

  Countdown start time setting range: 1minute to 24 hours (1-minute increments and 1-hour increments)

  Other: Auto-repeat

• Alarm/hourly time signal:

  5 daily alarms (with 1 snooze alarm)

  Hourly time signal

• Light:

  LED light

   Auto light switch, selectableillumination duration (1.5 seconds or 3 seconds), afterglow

• Light color:

  LED:Amber

• Calendar:

  Full auto-calendar (to year 2099)

• Accuracy:

  Accuracy: ±15 seconds per month

• Other features:

  12/24-hour format

  Regular timekeeping:

  Analog: 2 hands (hour, minute (hands move every 20 seconds)), 1 dial (speed)

   Digital: Hour, minute, second, pm, month, date,day