A model equipped with a high-brightness LED backlight from G-SHOCK, which continues to evolve in the pursuit of toughness. Use of a high-brightness LED system and a light guide plate makes the watch easy to read even in the dark. It also has practical functions such as world time, an alarm, and a stopwatch. The color is classic G-SHOCK black, and the brand-color red is used as an accent throughout.
Case size (L× W× H)
55 × 51.2 × 17.4 mm
Case and bezel material
Resin
Construction
Shock Resistant
Water resistance
200-meter water resistance
Power supply and battery life
Approx. battery life: 7 years on CR2025
Glass
Mineral Glass
World time
Multi Time (4 different cities)
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: 23:59'59.99'' Measuring modes: Elapsed time, split time, 1st-2nd place times
Timer
Countdown timer Measuring unit: 1/10 second Input range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments)
Alarm/hourly time signal
5 alarms (daily or one-time)
Hourly time signal
Flash alert feature
Flash alert Flashes with buzzer that sounds for alarms, hourly time signal, countdown timer time up alarm
Light
LED backlight Auto light switch, selectable illumination duration, afterglow.
Calendar
Full auto-calendar (to year 2099)
Mute feature
Button operation tone on/off
Accuracy
Accuracy: ±15 seconds per month
Other features
12/24-hour format
Regular timekeeping: Hour, minute, second, pm, month, date, day
![Casio G-Shock [GD-100-1BDR-S]](http://citychain.com.my/cdn/shop/products/GD-100-1BDR-S_1024x1024.png?v=1709703181)
