Casio G-Shock GA201-1A Watch

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A big-case G-SHOCK that is the embodiment of toughness. The powerful design combines a big case, a three-dimensional dial to create a unique model that uses metal parts, and is both casual and high-quality. Uses a metal bezel in standard colors based around black. Uses a multi-layer dial that combines a metal dial with a metallic-painted resin dial, achieving both a casual three-dimensional look and the look of high-quality metal. Features a black aluminum bezel with a cool finish. Functionally, it is equipped with a millisecond stopwatch and JIS class-1 magnetic resistance. It is also highly practical. A big-case G-SHOCK that combines quality and a unique design.

Basic Informationclose

  • Case size (L× W× H): 55.1 × 52.5 × 16.7 mm
  • Weight: 76 g
  • Case and bezel material: Resin / Aluminum
  • Band: Resin Band
  • Construction: Shock Resistant / Magnetic Resistant
  • Water resistance: 200-meter water resistance
  • Power supply and battery life: Approx. battery life: 3 years on CR1220
  • Exterior: Mineral Glass

Watch Features

  • World time
  • World time
  • 29 time zones (48 cities + coordinated universal time), city code display, daylight saving on/off, Home city/World time
  • city swapping
  • Stopwatch
  • 1/1000-second stopwatch
  • Measuring capacity: 99:59'59.999''
  • Measuring modes: Elapsed time, lap time, split time
  • Others: Speed (0 to 1998 units/hour), Distance input (0.0 to 99.9)

Countdown timer

  • Measuring unit: 1 second
  • Countdown range: 24 hours
  • Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments)
  • Other: Auto-repeat
  • Alarm/hourly time signal
  • 5 daily alarms (with 1 snooze alarm)
  • Hourly time signal


  • LED light
  • Auto light switch, selectable illumination duration, afterglow
  • Light color: LED Amber

Other features

  • 12/24-hour format
  • Regular timekeeping:
  • Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (speed)
  • Digital: Hour, minute, second, pm, month, date, day
  • Calendar: Full auto-calendar (to year 2099)
  • Accuracy: ±15 seconds per month
  • Operation Guide