Casio G-Shock Men’s Analogue Digital Watch Red 100m WR World Time GA-100B-4AER


In stock


Introducing a collection of new G-SHOCK models whose large cases give them a look of power and strength. Dial rings and raised hour markers also create three-dimensional depth that gives the face plenty of character. These watches are designed and engineered to deliver outstanding shock resistance, are 200m water resistant, and anti-magnetic. The GA-100B-4AER is beautifully finished in red with white accents, a reverse LCD display and a red resin strap for a distinctive look.

Over-sized buttons come with a checkered anti-slip surface to make operations fast and sure.

  • Accuracy: +/- 15 seconds per month
  • Alarm function: 5 daily alarms – each will sound every day at the time you set, hourly time signal: the watch beeps every hour on the hour, snooze function
  • Auto calendar: Once set, the automatic calendar always displays the correct date
  • Average speed display: A dial on the watch face displays your average speed travelled over a set distance
  • Band material: Resin
  • Battery life: Approximately 2 years
  • Case material: Resin/ stainless steel
  • Countdown timer function: Countdown range – 24 hours, measuring unit: 1 second
  • Date and weekday display: The current date and week day are displayed on the watch face
  • Date display: The current date is displayed on the watch face
  • Dimensions: 55.0 x 51.2 x 16.9mm
  • Display illumination auto light: The watch face will illuminate automatically when you tilt your wrist towards you. Once activated, this feature will automatically deactivate after six hours., led light, selectable illumination duration (1.5 seconds or 3 seconds)
  • Lap memory: 100 records
  • Low temperature resistant: -10 °c/ 14°f
  • Magnetic resistance: The case has been specially mounted to be shielded from magnetic fields.
  • Mineral glass: Hard glass resists scratching
  • Shock resistant: Patented hollow core guard structure protects against impact and vibration
  • Stopwatch function: Measuring capacity: 100 hours, measuring modes: elapsed time, split time, measuring unit: 1/1000th second
  • Total weight: 70g
  • Vibration resistant: Resistant against vibration from heavy duty operations
  • World time: Displays the current time in major cities and specific areas around the world

In used condition, with very minor signs of wear on the strap and bezel. There are no marks or scratches on the glass. Does not include the original box or booklet, but instruction manuals can be downloaded from Casio’s website.

Additional information



Case Diameter



Grade A, Used

Display Type




Movement Type

Quartz (Battery)

Strap Material


Strap Type

Two-Piece Strap

Watch Strap Colour


Water Resistance

200m (20 ATM)