- 46% Casio G-Shock GD100-1B | Men’s Tough Digital Watch | 200M Water Resistant | High-Brightness LED | Dual Time & 7-Year Battery by Casio

Casio G-Shock GD100-1B | Men’s Tough Digital Watch | 200M Water Resistant | High-Brightness LED | Dual Time & 7-Year Battery by Casio

(1888 customer reviews)

Original price was: $110.00.Current price is: $58.98.

Original price was: $110.00.Current price is: $58.98.

Top Pick — discover the Casio G-Shock GD100-1B | Men’s Tough Digital Watch | 200M Water Resistant | High-Brightness LED | Dual Time & 7-Year Battery by Casio, built for performance and designed for life in the United States.

About Casio G-Shock GD100-1B | Men’s Tough Digital Watch | 200M Water Resistant | High-Brightness LED | Dual Time & 7-Year Battery

  • Rugged & Sporty Design – Matte black finish with bold digital display, built for tactical, military, and extreme sports enthusiasts.
  • High-Brightness LED Backlight – Features Super Illuminator LED with a light guide plate, ensuring exceptional visibility in low-light conditions.
  • 200M Water Resistance – Engineered for swimming, snorkeling, and outdoor adventures, this shock-resistant watch is ready for action.
  • Extended 7-Year Battery Life – Powered by a CR2025 battery, offering years of reliable performance without frequent replacements.
  • Shock-Resistant Structure – Built to withstand extreme conditions, making it ideal for sports, military, and rugged outdoor use.

The Casio G-Shock GD100-1B | Men’s Tough Digital Watch | 200M Water Resistant | High-Brightness LED | Dual Time & 7-Year Battery by Casio combines reliability, modern design, and user-focused engineering. Perfect for everyday use, it delivers dependable results for American customers who value innovation.

Specification: Casio G-Shock GD100-1B | Men’s Tough Digital Watch | 200M Water Resistant | High-Brightness LED | Dual Time & 7-Year Battery by Casio

Brand Seller or Collection Name

Casio

Model number

GD100-1B

Part Number

GD100-1B

Model Year

2011

Item Shape

Round

Dial window material type

Mineral Glass

Display Type

Digital

Clasp

Buckle

Case material

Resin

Case diameter

5.1 centimeters

Case Thickness

17.4 millimeters

Band Material

Resin

Band size

Men's Standard

Band width

21 millimeters

Band Color

Black

Dial color

Black

Bezel material

Resin

Bezel function

Stationary

Calendar

Day-Date-Month

Special features

Water Resistant, Shock Resistant

Item weight

2.5 ounces

Movement

Japanese Quartz

Water resistant depth

200 Meters

Photos: Casio G-Shock GD100-1B | Men’s Tough Digital Watch | 200M Water Resistant | High-Brightness LED | Dual Time & 7-Year Battery by Casio

1888 reviews for Casio G-Shock GD100-1B | Men’s Tough Digital Watch | 200M Water Resistant | High-Brightness LED | Dual Time & 7-Year Battery by Casio

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  1. JDS

    This watch is durable, comfortable, and easy to set. I have bathed my infant wearing it and the water resistance seems good. The settings allow easy switching between time and stopwatch modes. Sizing is great and the band is smooth.

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  2. Brittany Andiorio

    The media could not be loaded.

    I was very distraught at the condition the box came as per the video. The box was opened and contents were almost falling out. After inspection of the watch and the paperwork that came inside everything seems to be ok. There was no signs the watch had been previously been used. There was no scratches or dirt on the watch or wrist band. I have a 8.5” size wrist and the watch fits just right. Watch feels comfortable . Not too thick/thin for my wrist size. Im loving the blacked out negative display. I will have to see how it displays in the day time as im writing this review at night 😁. Rubber/plastic material doesn’t have a weird smell. Buttons are just big enough for my fingers to operate. I got this on sale so it makes it worth the money. Battery lufe will be TBD. If it’s the original from the manufacturer im not expecting a long life. Manual says 7yrs.

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  3. Mauricio Tapia

    This is the best not expensive but not cheap G-Shock imo. Looks good, not too flashy and def an immediate “G-shock” look.

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  4. Mauricio Tapia

    Great watch. Exactly as described and I have had no issues to this point.

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  5. Adolfo Luna

    Great watch easy to set

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  6. Vermecilli

    Love this watch! Everything works perfect and not to bulky.

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  7. Amazon Customer

    Montres Casio toujours solides et fonctionnelles

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  8. Amazon Customer

    Die Uhr ist super und in der bekannten Casio-G-Shock-Qualität. Die Uhr ist allerdings extrem schwer ablesbar (ich bin 47 😉 ), da sehr dunkel. Man braucht fast ständig die Lichtfunktion. Ich habe sie jetzt meinem Sohn (14 Jahre) überlassen und er hat damit keine Probleme. Ansonsten eine TOP Uhr für einen guten Preis. Aufgrund der Ablesbarkeit musste ich aber einen Stern abziehen.

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  9. Rodrigo

    Great product. Simple and resistent. Great size and great design.

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  10. Vermecilli

    This thing looks and feels smaller than it is, the angled roundness and blacked out scheme make it discrete on the wrist, hiding its thickness which is nice.

    It has all the standard features from stop watch to timer, easy to see even though its not one of the new MIP displays. It has acceptable for me viewability in low light, its not going to be perfect but that’s the price for discrete inverted display.

    It helps that the cuff band is nice as it curves around the wrist instead of bending against due to cheaper watches floppy hinges. It makes it more comfortable and sit more appropriately on the wrist.

    The time is at the bottom and so closer to the front of your wrist, easier to see quickly. Its soft extra wide and more premium feeling than the cheaper watches.

    The backlight is very bright and clear.

    The few gripes are this, it doesn’t show the clock time in timer mode in the corner like with the squares, it just has animation there instead, and the timer doesn’t have an auto loop cycle.

    I’ve included a low light picture for reference.

    Very good day to day watch.

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    Last updated on October 19, 2025 2:45 am Details
    Casio G-Shock GD100-1B | Men’s Tough Digital Watch | 200M Water Resistant | High-Brightness LED | Dual Time & 7-Year Battery by Casio
    Casio G-Shock GD100-1B | Men’s Tough Digital Watch | 200M Water Resistant | High-Brightness LED | Dual Time & 7-Year Battery by Casio

    Original price was: $110.00.Current price is: $58.98.

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