G-SHOCK GAS-100 Series GAS100B-1A, front view
G-SHOCK GAS-100 Series GAS100B-1A, front view
G-SHOCK GAS-100 Series GAS100B-1A, angled view
G-SHOCK GAS-100 Series GAS100B-1A, shown alongside other watches
G-SHOCK GAS-100 Series GAS100B-1A, close-up detail
G-SHOCK GAS-100 Series GAS100B-1A, front view
G-SHOCK GAS-100 Series GAS100B-1A, front view
G-SHOCK GAS-100 Series GAS100B-1A, angled view
G-SHOCK GAS-100 Series GAS100B-1A, shown alongside other watches
G-SHOCK GAS-100 Series GAS100B-1A, close-up detail
G-SHOCK GAS-100 Series GAS100B-1A, front view
G-SHOCK GAS-100 Series GAS100B-1A, front view
G-SHOCK GAS-100 Series GAS100B-1A, angled view
G-SHOCK GAS-100 Series GAS100B-1A, shown alongside other watches
G-SHOCK GAS-100 Series GAS100B-1A, close-up detail
G-SHOCK GAS-100 Series GAS100B-1A, front view
G-SHOCK GAS-100 Series GAS100B-1A, front view
G-SHOCK GAS-100 Series GAS100B-1A, angled view
G-SHOCK GAS-100 Series GAS100B-1A, shown alongside other watches
G-SHOCK GAS-100 Series GAS100B-1A, close-up detail

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G-SHOCK GAS-100 Series GAS100B-1A

$180.00
Free Shipping US orders over $50 after discounts

A G-SHOCK that earns its wrist space.

The GAS100B-1A centers on solar power. It keeps the core G-SHOCK proposition intact: a watch designed to be worn, not babied.

Our take

This is intentionally a large watch. If you want wrist presence, great. If you want discreet, keep moving.

Know before you buy

Case: 55.1 × 52.5 × 16.7 mm. Crystal: Mineral Glass.

Open Technical Data for...

  • Sku: GAS100B-1A
  • Available: Out of Stock
  • Vendor: G-Shock
G-SHOCK GAS-100 Series GAS100B-1A, front view
G-SHOCK GAS-100 Series GAS100B-1A
$180.00

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Rated by Watch It clients

A G-SHOCK that earns its wrist space.

The GAS100B-1A centers on solar power. It keeps the core G-SHOCK proposition intact: a watch designed to be worn, not babied.

Our take

This is intentionally a large watch. If you want wrist presence, great. If you want discreet, keep moving.

Know before you buy

Case: 55.1 × 52.5 × 16.7 mm. Crystal: Mineral Glass.

Open Technical Data for the full dimensions and materials, or Features for the function list.

<G-SHOCK GAS-100 Series GAS100B-1A, front view

Collection: ANALOG-DIGITAL
Case Size: 55.1 × 52.5 × 16.7 mm
Case Shape: Round
Case Material: Resin / Aluminum
Strap Material: Resin Band

Glass Material: Mineral Glass
Bezel Material: Resin / Aluminum

G-SHOCK GAS-100 Series GAS100B-1A, front view

  • Stable solar power
  • Casual design
  • Great for extreme sports
  • Cool matte color
  • Construction : Shock Resistant
  • Power supply and battery life : Tough Solar (Solar powered)
  • 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

G-SHOCK GAS-100 Series GAS100B-1A, front view

G-SHOCK, the watch that brought the new concept of toughness to the timepiece.
It began with a reckless challenge to the conventional wisdom of the day, a developer’s belief that it was possible to construct a watch that wouldn’t break, even if dropped. Project Team Tough was formed to build it in 1981.
The team created over 200 prototypes one after another over a period of about two years. They finally arrived at a shock-resistant structure. This marked the birth of a technology that is tough to the core.
And G-SHOCK has continued its unceasing evolution ever since, in pursuit of greater toughness in every respect, from structure and materials to functions. Today, the development team’s passion for challenge and constant efforts have reached fruition in Triple G Resist, a structure with the strength to withstand 3 types of gravitational acceleration.

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