GA-100B-4AER

From G-SHOCK, the watches that evolve in search of maximum resistance, this model combines analog and digital display. It has a millisecond stopwatch and speedometer. It has JIS class 1 magnetic resistance and excellent functionality.

Case and bezel material

Case and bezel material: Resin

Strap-Resin strap

Assembly

Shock resistant

Magnetic field resistant

Water resistant

Water resistant to a depth of 200 meters (660 feet)

Power supply and battery life

Approximate battery life: 2 years on CR1220

Glass-Mineral crystal

Watch functions

World time

World time with 29 time zones (48 cities + coordinated universal time), daylight saving time on/off and local city/world time changeover

Stopwatch

1/1000 second stopwatch Measuring capacity: 99:59'59,999'' Measuring modes: Elapsed time, lap time and fractions of time Others: Speed (from 0 to 1998 units/hour), distance input (from 0.0 to 99.9) and Mach indicator (speed above 1225 units/hour)

Timer

Countdown timer Unit of measurement: 1 second Countdown interval: 24 hours Countdown start time setting range: 1 minute to 24 hours (1 minute and 1 hour increments) Other: Auto repeat

Alarm / time signal

5 daily alarms (with one snooze alarm)

Time signal

Illumination

LED light, auto light switch, selectable illumination duration (1.5 or 3 seconds) and brightness

Light color

LED: Amber

Calendar

Full automatic calendar (up to the year 2099)

Accuracy

Accuracy: ±15 seconds per month

Other options

12 and 24-hour format

Normal time indication: Analog: 2 hands (hour and minute (hand moves every 20 seconds), 1 dial (speed) Digital: hour, minutes, seconds, p.m., month, date and day