G-Shock Digital GD100-1B Men’s Watch

The G-Shock Digital GD100-1B Men’s Watch was designed based on the successful analog/digital GA100 X-large G series. This version of the watch is all digital and features a black resin band with a black face. The watch is shock resistant and water resistant up to 200m.

G-Shock Digital GD100-1B Features

Shock Resistant

200M Water Resistant

High Intensity LED

Large Digital Display Area

Product Manual


Shock Resistant Yes
Water Resistant Up to 200m
Multi-time 4 different cities
Alarms 5 independent (one time or daily)
Hourly Time Signal Yes
Flash Alert Flash Alert Flasher with buzzer that sounds for alarms, hourly time signal, countdown timer time-up alarm, countdown timer progress beeper
Countdown Timer Measuring Unit 1/10 second
Countdown Range 24 hours
Countdown Start Time Setting Range 1 minute to 24 hours (1 – second increments, 1-minute increments and 1-hour increments)
Other Progress beeper
Calendar Full Auto Calendar (pre-programmed until the year 2099)
Formats 12/24 hour formats
Button Operation Tone On/Off
Accuracy: +/- 15 seconds per month
Battery CR2025
Battery Life Approximately 7 years



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Additional information

Weight .3 lbs


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