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Casio G-Shock GA-2100 Series Analog-Digital Black Resin Watch 48.5mm - GA2100-1A

  • Based on 82 reviews
Condition: New
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Availability: Only 3 left in stock, order soon!
Fulfilled by JEWEAR LLC

Arrives Tuesday, Sep 1
Order within 2 hours and 33 minutes
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Description

From G-SHOCK, the toughness watches that continue to evolve in search of ultimate strength, this digital-analog combination model inherits the concept of the first-generation DW5000C models, while being even thinner. Inherits the octagonal shape that was also used in the first-generation DW5000C model. A combination model developed with a simple design that eliminates waste while maintaining a tough structure. Also achieves a thickness of 11.8 mm thanks to a highly rigid fine resin containing carbon fiber for the case material.Case size (L? W? H): 48.5 ? 45.4 ? 11.8 mmWeight: 51 gCase and bezel material: Carbon / ResinResin BandShock ResistantCarbon Core Guard structure200-meter water resistanceApprox. battery life: 3 years on SR726W X 2Mineral GlassWorld time: 31 time zones (48 cities + coordinated universal time), daylight saving on/off1/100-second stopwatchCountdown timer5 daily alarmsDouble LED lightFull auto-calendar (to year 2099)Button operation tone on/off12/24-hour formatHand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)Casio G-Shock Style : GA-2100-1A

Product Dimensions ‏ : ‎ 4.45 x 3.66 x 3.39 inches; 5.6 ounces


Item model number ‏ : ‎ GA2100-1A


Department ‏ : ‎ Watches


Date First Available ‏ : ‎ October 31, 2024


Manufacturer ‏ : ‎ G-Shock


Product Warranty: For warranty information about this product, please click here


Customer Reviews: 4.6 4.6 out of 5 stars (82)


Display: Analog-Digital


Watch Movement Type: Quartz


Additional Features: Alarm


Power Source: Battery Powered


Strap Type: Two Piece


Water Resistance Depth: 200 Meters


Sport Type: Climbing, Running, Hiking


Clasp Type: No Clasp Type


Water Resistance Level: Water Resistant


Closure Type: Buckle


Style Name: Watches


Shape: Octagonal


Band Color: Black


Dial Color: Black


Theme: G-Shock


Pattern: Solid


Face Style: Crosshair


Brand Name: Casio


Model Name: GA-2100 SERIES


Included Components: 1 x G-Shock Watch


Model Number: GA2100-1A


Series Number: 1


Item Weight: 0.35 Pounds


Manufacturer: G-Shock


UPC: 889232241685


Manufacturer Part Number: GA2100-1A


Age Range Description: Adult


Band Material Type: Resin


Case Material Type: Resin


Crystal: Mineral Glass


Case Diameter: 48.5 Millimeters


Bands: 1


Warranty Type: Manufacturer


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Sep 1

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Good quality
Great design
Reviewed in the United States on February 28, 2026 by Eric alcéquiez

  • New Addition
Great Watch
Reviewed in the United States on April 8, 2026 by Carimbo

  • Style and function
First watch I purchased for my son. He loved it. Great style and function
Reviewed in the United States on March 7, 2026 by Samuel Mateo Jr.

  • Adjustable fit, stylish
Watch is perfect, only problem is setting the time. I live in Pennsylvania which they dont have a time zone for, so the closest is NY. The time is an hour behind on my watch
Reviewed in the United States on August 31, 2025 by Skizzy Vert

  • Great heavy duty wacht for a ridiculous price Great heavy duty wacht for a ridiculous price
Woo, im a luminox wacht guy This one is awesome watch with a lot more features 1/4 price and exellent quality
Reviewed in the United States on June 6, 2026 Reviewed in the United States on June 6, 2026 by andres

  • My new favorite G-Shock!
ThisGS has become my goto watch. The face is flat color so the hands stand out. Its super light compared to my other mechanical face watches. The build quality is standard for a g-shock, you will love the fit. Functionally its a great watch with steps, calendar, and date, along with the other typical functions of the movement. And its digital so time is always perfect. ... show more
Reviewed in the United States on October 17, 2025 by Sean Moores

  • Armored infantryman likes it at work.
I bought this for my son who is a hard charging mechanized infantry soldier in the 1st Armored Division, US Army. I sent this to him when he was deployed in Poland on the Ukrainian border. I asked him to wear it whenever he is "In the field", and told him not to try and destroy it, but also don't try not to! That was 6 months ago, and he says it is holding up great so far. I've always felt that when one is raining down Hellfire and destruction on Russian armor, one should wear a sturdy yet attractive time piece. This seems to fit the bill. Next Summer is desert warfare training-we'll know even more then. ... show more
Reviewed in the United States on September 13, 2025 by Dennis Sipsy

  • Goid everyday beater
Very nice
Reviewed in the United States on March 27, 2026 by RVS

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