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G-Shock

G-Shock Casio G-Steel Solar Connected Blue Dial Black Resin Strap Watch - GBM2100A-1A2

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Availability: 20 left in stock
Fulfilled by Amazon
Arrives Tuesday, Oct 6
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Color: Black


Description

Metal-clad daring meets sophisticated gleam in this Casio G-Shock that delivers Smartphone Link via Bluetooth(R) and Tough Solar charging system, all in a meticulously finished metal design with iconic octagonal bezel. This model features a blue metallic vapor deposition dial that is complemented by a black band made of environmentally responsible bio-based resin. Welcome to a whole new level of metal-clad 2100 functionality - tough construction and stylish design in a timepiece that takes you from casual settings to business meetings without a thought. Case size (L? W? H): 49.3 ? 44.4 ? 11.9 mmCase and bezel material: Resin (Bio-based) / Stainless steelShock ResistantTough Solar (Solar powered)Black Bio-based resin band200-meter water resistanceMobile link (Wireless linking using Bluetooth(R))Mineral GlassWorld time: 38 time zones (38 cities + coordinated universal time), auto summer time (DST) switching, home city/world time city swapping1/100-second stopwatchCountdown timer5 daily alarmsHourly time signalDouble LED lightLED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)LED backlight for the digital display (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)Full auto-calendar (to year 2099)Mute feature: Button operation tone on/offPower Saving (display goes blank to save power when the watch is left in the dark)Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)12/24-hour formatDate/month display swappingDay display (days of the week selectable in six languages)Regular timekeeping: Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (battery level, mode); Digital: Hour, minute, second, pm, month, date, dayG-Shock Style : GBM2100A-1A2

Product Dimensions ‏ : ‎ 4.29 x 3.9 x 3.35 inches; 5 ounces


Item model number ‏ : ‎ GBM2100A-1A2


Department ‏ : ‎ Watches


Batteries ‏ : ‎ 1 Nonstandard Battery batteries required.


Date First Available ‏ : ‎ May 24, 2024


Manufacturer ‏ : ‎ Casio


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


Best Sellers Rank: #141,131 in Clothing, Shoes & Jewelry (See Top 100 in Clothing, Shoes & Jewelry) #351 in Men's Wrist Watches


#351 in Men's Wrist Watches:


Display: Analog-Digital


Watch Movement Type: Quartz


Additional Features: Alarm, Light Up, Shock Resistant, Timer


Power Source: Solar Powered


Strap Type: Two Piece Rubber


Water Resistance Depth: 200 meters


Sport Type: Walking


Clasp Type: No Clasp Type


Water Resistance Level: Water Resistant


Embellishment Feature: Crystal


Closure Type: Buckle


Style Name: Watches


Shape: Octagonal


Band Color: Black


Dial Color: Blue


Theme: Sports


Pattern: Solid


Face Style: Modern


Character: Fashion


Brand Name: G-Shock


Model Name: GBM2100A


Included Components: Bio-based resin band


Model Number: GBM2100A-1A2


Series Number: 2100


Item Weight: 5 ounces


Unit Count: 1 Count


Model Series: 2100


Manufacturer: Casio


Number of Items: 1


UPC: 889232377698


Age Range Description: Adult


Item Type Name: Sport Watch


Manufacturer Part Number: GBM2100-1A2


Band Material Type: Bio-based Resin


Case Material Type: 49.3 x 44.4 mm


Crystal: Mineral Glass


Case Diameter: 49 millimeters


Band Width: 24 millimeters


Case Thickness: 12 millimeters


Band Length: 21.5 centimeters


Bands: 1


Warranty Type: Manufacturer


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Oct 6

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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Top Amazon Reviews

    • Absolutely Excellent Watch!
You have to hand it to Casio. In this day and age when everyone is interested in "smart" watches and social media influencers are pushing the narrative that everyone needs a luxury watch, Casio is still just doing their thing making durable and simple watches that most of us can afford. I personally don't want to see texts, emails, and a constant bombardment of app alerts on my wrist and while I respect the artistry of a high end watch like a Rolex or a Tudor, I just simply have different financial priorities. The half metal version of the "CasioOak" fits a perfect sweet spot for me. I work in an office five days a week and need to dress the part for meetings with clients. At the same time, I ride a bike to work five days a week as well, so I need a watch that can take the abuse of rain, and bumps on the streets, and gravel roads, etc. I also want to be able to read the watch while moving in and out of traffic quickly so I can pay attention to the road. The pale blue color of the dial adds a touch of flair without being too loud and the resin strap is nice and comfortable for when my wrist swells or contracts on cold and hot days while riding. The solar and bluetooth features are unnecessary for me, but they're nice to have and work well. I had no problem syncing up the watch to my phone and it's nice knowing the watch is keeping perfect time. Very happy with this purchase. ... show more
Reviewed in the United States on August 25, 2025 by Andrew Kaiser
    • Perfect bluetooth time updating for jetsetting - solar a huge bonus.
I love this watch. It's my daily driver; I've been wearing it for two months now. My favorite part is how you just hold down the Bluetooth connect button for three seconds, and it automatically adjusts the time to where I am currently located. It's perfect for flying. I also love the solar!! just buy it. ... show more
Reviewed in the United States on September 2, 2026 by Amazon Customer
    • Good watch
It has that classic G-Shock toughness but looks a lot cleaner and more premium than the typical bulky styles. It’s surprisingly comfortable to wear daily, not too heavy, and the fit feels great on the wrist. The Bluetooth features and solar charging are also nice quality-of-life additions that make it feel modern without being overcomplicated. My only real caveat is the resin band, but that’s more personal preference than an actual flaw. The band itself is comfortable and well made, I just prefer the look and feel of a steel bracelet, so I’ll probably swap it out eventually. Overall though, it’s an excellent watch and easily one of my favorite G-Shocks. ... show more
Reviewed in the United States on May 21, 2026 by Jacob
    • Great watch at a great price point
Great watch and synching with your phone when traveling is awesome….
Reviewed in the United States on September 11, 2026 by Sides
    • Good value for the money
Great looking watch that has all the features that I want. I installed a bracelet style band and that made a big difference in the look of the watch. The phone finder is a very useful feature. Solar power is a big plus. Knowing that the watch will always work and I don't have to worry about the battery dying. The build quality is very good and Casio has the reputation of being very tough watches. I high recommend this watch to anyone wanting a good watch at a great price. This watch can be worn to the office as well as out to dinner on a Saturday night. ... show more
Reviewed in the United States on February 15, 2026 by Bryan Harden
    • Great watch
I own 12 G-Shock watches and this is one of my favorites. Worth the money.
Reviewed in the United States on September 1, 2026 by Jason stetler
    • Wears Big But Very Nice
Cool looking watch, elevates the casual wear game a bit for this style. Good legibility, though sometimes glare is a factor. It is one of my favorite style G-Shocks and I love this color dial. For those w/small wrists, the case measures 45mm across and 48mm lug to lug, so keep that in mind. It is actually a bit big and perhaps slightly gaudy for me, but I like the watch enough to try and pull it off. ... show more
Reviewed in the United States on May 5, 2026 by J. Thompson
    • Classy look
Review Image by Ivan
Another one to my little collection , love the look and style. Quality of it is amazing
Reviewed in the United States on September 16, 2026 by Ivan

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