Casio G-Shock GD100-1B XL All Matte Black Digital Mens Sport Watch

In stock


This all black resin with negative display GD100-1B is the digital version of the popular and time-tested GA100 series, with which it shares the same case design. For this reason the digital LCD is larger and more legible. A high-intensity LED light further helps with visibility in the dark. The all black strap, case, and face will make it an easy pairing with any outfit, while the functions will make it useful in a multitude of situations.


  • Black 55.0 x 51.2 x 17.4mm Resin Case
  • Black High-Grade Casio Rubber Strap
  • Black Dial, Negative LCD
  • Shock Resistant
  • Magnetic Resistant
  • 200 Meter Water Resistant
  • Mineral Glass
  • High-Intensity LED Backlight, selectable illumination duration, afterglow
  • Flash alert: Flashes with buzzer that sounds for alarm, hourly time signal, countdown timer time up alarm
  • Multi-Time (4 different cities)
  • World Time 
    31 times zones (48 cities + UTC), city code display, daylight saving on/off
  • 5 Independent Alarms (one time or daily)
  • Hourly Time Signal
  • 1/100 Second Stopwatch 
    Measuring capacity: 23:59'59.99" 
    Measuring modes: Elapsed time, split time, 1st-2nd Place Times
  • Countdown Timer 
    Measuring unit: 1/10 second 
    Countdown range: 24 hours 
    Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments) 
    Other: Progress Beeper
  • Full Auto-Calendar (pre-programmed until the year 2099)
  • 12/24 Hour Formats
  • Button Operation Tone on/off
  • Accuracy: +/- 15 seconds per month
  • Battery: CR2025
  • Approx. battery life: 7 years
  • Module 3263
  • Band Length: 145mm - 215mm
  • Total Weight: 72 grams

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund as soon as we get the returned item.

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item. Once Return Authorization is given please return the item within 14 days. No packages will be accepted once the return period has expired.


We ship only to continental US, Alaska & Hawaii address. We do not ship to P.O.Box, APO/FPO address or make any International shipments.

All orders are processed and shipped in 48 HR period once the payment is approved and received.

All orders are shipped with Priority Mail service ( 2-3 days ) Some areas it takes an additional day ( Hawaii, Alaska and rural areas ). Please also consider that Sundays and Holidays will delay the delivery.

Size Chart

Recently Viewed Products