Search  for anything...
G-Shock

G-Shock Casio Metal Covered Octagonal Black Resin Band Watch GM2100-1A

  • Based on 418 reviews
Condition: New
Checking for the best price...
$175.95 Why this price?
Presidents' Day Sale · 11% off was $198.61

Buy Now, Pay Later

As low as $29.33 / mo
  • – 6-month term
  • – No impact on credit
  • – 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.

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: In Stock.
Fulfilled by Amazon
Arrives Thursday, Feb 19
Order within 21 hours and 28 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Features

  • Forged in stainless steel with rounded hairline finish, the strong bezel says super style all the way
  • Super LED Light
  • Shock Resistant
  • Mineral Glass

Description

G-Shock Casio Metal Covered Octagonal Black Resin Band Watch GM2100-1A

Item Package Dimensions L x W x H: ‎4.33 x 3.82 x 3.23 inches


Package Weight: ‎0.23 Kilograms


Item Dimensions LxWxH: ‎8 x 5 x 8 inches


Item Weight: ‎0.5 Pounds


Brand Name: ‎G-Shock


Warranty Description: ‎Warranty


Model Name: ‎G-Shock Casio Metal Covered Octagonal Black Resin Band Watch GM2100-1A


Color: ‎black


Material: ‎Plastic


Suggested Users: ‎mens, unisex-adult


Number of Items: ‎1


Manufacturer: ‎G-Shock


Part Number: ‎GM2100-1A


Style: ‎Watches


Included Components: ‎G-Shock Casio Metal Covered Octagonal Black Resin Band Watch GM2100-1A


Size: ‎One Size


Sport Type: ‎Walking


Water Resistance Depth: ‎200 Meters


Date First Available: August 3, 2021


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Feb 19

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

    • Great all around watch
Overall, I am very pleased with this watch. It looks awesome and is built very well. It looks great as a formal watch and also as a casual everyday watch. I actually get compliments on it and many people don’t realize it is an g shock at first and think it’s a high end designer watch. And unlike most G shocks, it does not look super bulky and instead looks quite classy and slim. Overall functionality is good. It has the features you expect from a G shock and then some. I really like the hand shift feature, it is satisfying, watching the hands move out of the way. The super illuminator feature is nice too, it makes it easy to see the digital screen at night and the way the light shines in the corner and reflects on the inside is cool too. The 31 different time zones is great if you travel frequently. Unfortunately though, like most people said visibility of digital screen is not the best. Being a negative style display means that it can be hard to see if there is not an adequate light source. The small size of it doesn’t help. That being said, it’s not so bad once you get used to positioning the watch face so light reflects on that part at least. Still, it is nice being able to see the exact time and date with a switch of a button as well as a the second countdown. Plus if it really bothers you then they do sell a version with a positive style display which is easier to see but will a cost bit more. Finally, the size and fit ment of the watch is for me is perfect. Not too big not too small. I have average size wrists. The resin strap is great, feels and looks good especially with the added texture. If you have large wrists then you may find the diameter of the watch a bit too small. Overall I would say it is well worth it, especially when it is on sale. It is beautiful, functional and feels very well built. Very few minor cons. ... show more
Reviewed in the United States on May 13, 2025 by A Amir
    • Great buy, can't complain
Review Image by Edgarvdubbz Edgarvdubbz
Very nice look to the watch and comfortable on the wrist
Reviewed in the United States on January 21, 2026 by Edgarvdubbz Edgarvdubbz
    • Great sport watch
Had all the features my husband wanted
Reviewed in the United States on January 2, 2026 by Kindle Customer
    • Beautiful, elegant and casual
I have received plenty of compliments about this watch. Looks super elegant.
Reviewed in the United States on January 15, 2026 by Ibrahim Antonio Hernandez
    • Premium watch
Review Image by Devante Hall Devante Hall
Excellent watch that feels premium on the wrist
Reviewed in the United States on December 26, 2025 by Devante Hall Devante Hall
    • Works as intended.
Setup was a little confusing at first but not bad. Son really likes it.
Reviewed in the United States on November 23, 2025 by Suporn
    • Love it
It is simply beautiful and with a tough look
Reviewed in the United States on December 23, 2025 by Randy
    • Reliable Casio
Review Image by Diego Perez Diego Perez
Works well on smaller wrists too
Reviewed in the United States on January 16, 2026 by Diego Perez Diego Perez

Can't find a product?

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