*The colors may differ slightly from the original.

  • GAC-100-1A
  • GAC-100-1A2
  • GAC-100-8A

*The colors may differ slightly from the original.

New analog 1/20-second chronograph
A highly intricate face set into the hefty G-SHOCK design results in a watch with a distinctive personality all its own. Though intricate, the face employs metal parts to create a variety of levels and layers that make the information it presents easy to read. Features include a large screw lock crown, a 1/20-second analog chronograph, magnetic resistance, and more.


  • Mineral Glass
  • Magnetic Resistant
  • Shock Resistant
  • Screw Lock Crown
  • 200-meter water resistance
  • Case / bezel material: Resin
  • Resin Band
  • 1/20-second stopwatch
    Measuring capacity: 11:59'59.95"
    Measuring modes: Elapsed time, split time, 1st-2nd place times
  • Date display
  • Regular timekeeping
    Analog: 3 hands (hour, minute, stopwatch seconds), 3 dials (time keeping second, stopwatch 1/20 second, stopwatch hours/stopwatch minutes)
  • Accuracy: ±20 seconds per month
  • Approx. battery life: 3 years on SR927SW
  • Size of case: 55 X 52.7 X 16.6 mm
  • Total weight: 72.9 g
  • Back Engraving G-SHOCK magnetic
  • Package G-SHOCK