Search  for anything...
G-Shock

G-Shock Casio G-Steel Watch GBM2100A

  • Based on 199 reviews
Condition: New
Checking for the best price...
$240.00 Why this price?
Save $40.00 was $280.00

Buy Now, Pay Later

As low as $40.00 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: Only 4 left in stock, order soon!
Fulfilled by JEWEAR LLC
Arrives Friday, Jul 10
Order within 23 hours and 43 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Color: Silver


Description

Smart and stylish, sleek and sophisticated — a GBM2100 with bold metal bezel that delivers Smartphone Link and Tough Solar charging system, all in the same compact size. Key resin components used in the case and band are made with environmentally responsible bio-based resin. Choose your favorite color combination of vapor deposition finishes — the GBM2100A-2B with blue dial and silvery indexes, the GBM2100A-4B with burgundy dial and silvery indexes, or the GBM2100A-8B with light yellow gold-colored dial and black accented indexes. Tough construction and stylish design in a timepiece that takes you from casual settings to business meetings with ease.

Package Dimensions ‏ : ‎ 5 x 5 x 5 inches; 1.1 Pounds


Item model number ‏ : ‎ GBM-2100A-8BCR


Department ‏ : ‎ mens


Date First Available ‏ : ‎ September 13, 2025


Manufacturer ‏ : ‎ Casio G-Shock


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


Best Sellers Rank: #99,160 in Clothing, Shoes & Jewelry (See Top 100 in Clothing, Shoes & Jewelry) #315 in Men's Wrist Watches


#315 in Men's Wrist Watches:


Customer Reviews: 4.7 4.7 out of 5 stars (199)


Display: Analog-Digital


Additional Features: Alarm, Shock Resistant, Timer


Power Source: Battery Powered


Strap Type: Two Piece Resin


Water Resistance Depth: 200 Meters


Clasp Type: Buckle


Water Resistance Level: Water Resistant


Closure Type: Buckle


Style Name: Casual


Shape: Round


Band Color: Black


Dial Color: Gold


Pattern: Geometric


Face Style: Gilt


Brand Name: G-Shock


Model Name: GBM2100A


Model Number: GBM-2100A-8BCR


Item Weight: 0.5 Kilograms


Manufacturer: Casio G-Shock


UPC: 889232407760


Manufacturer Part Number: GBM-2100A-8B


Band Material Type: Resin


Case Material Type: Stainless Steel


Crystal: Mineral Glass


Case Diameter: 44


Warranty Type: Limited


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jul 10

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Good watch
Color: Black
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
    • Good value for the money
Color: Black
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 for what it is. Great watch for what it is.
Color: Black
Review Image by Mo
Had this watch for a year. It is my go to for travel or places I don’t want to wear a “more expensive watch”. The design is great. People always compliment it. It’s rugged as anything and the BT functions allow me to set time automatically. Really impressed with this. If you need something rugged that looks good and if you lose it you won’t lose your mind…stop reading and click “buy now” ... show more
Reviewed in the United States on June 10, 2026 Reviewed in the United States on June 10, 2026 by Mo
    • Fantastic Time Piece
Color: Black
Beautiful watch, refined just enough but tough enough to use in any situation. Love the solar charging and Bluetooth connectivity for a perfect setup. The light is bright and the looms are decent. Light weight you hardly notice you have it on. Highly recommend!
Reviewed in the United States on March 18, 2026 by David R.
    • Wears Big But Very Nice
Color: Black
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
    • Nice Watch - Awful Strap Nice Watch - Awful Strap
Color: Black
Review Image by 44Magpie
Not a big G-shock fan but I did like the color of this one so bought it here on Amazon. Nice and light and easily readable it's a great grab-and-go watch. Syncs perfectly by bluetooth to the Casio app it adjusts the time automatically 4 times a day for spot-on accuracy. Now the bad - I'll just say the strap on this watch is hot garbage. Made of 'bio-based resin' it's without a doubt the cheapest looking and feeling watch band I've ever seen. Now I'm sure Casio thinks they're saving the world by using this eco-friendly material but it really cheapens what is otherwise a great watch. Thankfully there are plenty of replacements available and I've already ordered one here on Amazon. So yes, a great watch cheapened by a horrible band so if getting one just replace it as I'm doing. ... show more
Reviewed in the United States on July 7, 2024 Reviewed in the United States on July 7, 2024 by 44Magpie
    • Quality
Color: Black
It’s made of quality material! I love the look.
Reviewed in the United States on June 8, 2026 by Amazon Customer
    • Absolutely Excellent Watch!
Color: Black
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

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...