From G-SHOCK, the watch brand that is constantly setting new standards for timekeeping toughness, comes new G-STEEL models, a watch series with a new "Layer Guard Structure*."
The GST-S100G that combines a solid case with a resin band. The overall black coloring of this model is offset by white hour and minute hands for designs that are chic and cool.
A Tough Solar power system ensures virtually uninterrupted operation, while a hand shift feature temporarily moves hands out of the way with the press of a button for easy reading of digital display contents. Double-LED face illumination keeps the face and digital display easy to read, even in the dark.
The new G-STEEL model is the perfect blend of different types of materials, a new structure, and fashionable design.

Basic Information

• Case size (L× W× H)

  59.1 × 52.4 × 16.1 mm

• Weight

  97 g

• Case and bezel material

  Resin / Stainless steel

• 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

• Other

  Neobrite

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