G-Shock Analog-Digital GA100-1A4

Introducing a collection of new G-SHOCK models whose 35mm diameter faces and large cases give them a look of power and strength. Dial rings and raised hour markers create three-dimensional depth that gives the face plenty of character. The popular G-SHOCK three-dial face design incorporates one analog dial in the center, with digital dials on either side. These watches are designed and engineered to deliver outstanding shock resistance and water resistance, as well as anti-magnetism. Over-sized buttons come with a checkered anti-slip surface to make operations fast and sure. 1/1000-second stopwatch, velocity indicator, World Time, 5 alarms and much more provides these models with unmatched function and performance.

Basic Information
Case size (L× W× H)
55 × 51.2 × 16.9 mm
Weight
70 g
Case and bezel material
Resin
Band
Resin Band
Construction
Shock Resistant
Magnetic Resistant
Water resistance
200-meter water resistance
Power supply and battery life
Approx. battery life: 2 years on CR1220

Exterior
Glass
Mineral Glass

Watch Features
World time
World time
29 time zones (48 cities + coordinated universal time), 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)
Mach indicator (speed exceeding 1225 units/hour)
Timer
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
Light
LED light
Auto light switch, selectable illumination duration (1.5 seconds or 3 seconds), afterglow
Light color
LED:Amber
Calendar
Full auto-calendar (to year 2099)
Accuracy
Accuracy: ±15 seconds per month
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