Casio GD100-1B | Black Digital Watch - G-SHOCK

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
Weight:72 g
Case and bezel material:Resin
Band:Resin Band
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: 23:59.99\u0027\u0027
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.
Light color:LED:White
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