From G-SHOCK, the watch brand that is constantly setting new standards for timekeeping toughness, come new basic color models using on big case, Tough Solar GAS-100 as the base.
A large, rugged case combines with an aluminum bezel and basic coloring. The bezel of the GAS-100B-1A2DR is a popular blue hue that adds a sporty accent to the overall design.
• Tough Solar
• Hand shift feature
• Double LED Light (Super Illuminator with Full Auto Light)

Basic Information

• Case size (L× W× H)

  55.1 × 52.5 × 16.7 mm

• Weight

  72 g

• Case and bezel material

  Case / bezel material: Resin / Aluminum

• Band

  Resin Band

• Construction

  Shock Resistant

• Water resistance

  200-meter water resistance

• Power supply and battery life

  Tough Solar (Solar powered)

Exterior

• Glass

  Mineral Glass

Watch Features

• World time

  World time
  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: 59'59.99''
  Measuring modes: Elapsed time, split time, 1st-2nd place times

• Timer

  Countdown timer
  Measuring unit: 1 second
  Countdown range: 100 minutes
  Countdown start time setting range: 1 second to 100 minutes (1-second increments, 1-minute increments)

• Alarm/hourly time signal

  5 daily alarms
  Hourly time signal

• Light

  Double LED light
  LED light for the face (Full auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
  LED backlight for the digital display (Full auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)

• Light color

  LED:White

• Calendar

  Full auto-calendar (to year 2099)

• Mute feature

  Button operation tone on/off

• Energy saving feature

  Power Saving (display goes blank to save power when the watch is left in the dark)

• Battery display/alert

  Battery level indicator

• Run time

  Approx. battery operating time:
  8 months on rechargeable battery (operation period with normal use without exposure to light after charge)
  19 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)

• Accuracy

  Accuracy: ±15 seconds per month

• Other features

  12/24-hour format
  Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)
  Regular timekeeping:
  Analog: 2 hands (hour, minute)
  Digital: Hour, minute, second, pm, month, date, day