Search  for anything...
Casio

Casio G-Shock GA2100HDS-7A Hidden Glow Collection Watch

Based on 69 reviews
Condition: New
Checking for the best price...
$120.00
Holiday Deal · 11% off was $135.00

Buy Now, Pay Later

As low as $20.00 / 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, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product
This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2027

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 3 left in stock, order soon!
Fulfilled by Altivo Timepieces
Arrives Monday, Nov 16
Order within 20 hours and 41 minutes

Available payment plans shown during checkout

Protect Your Purchase

Easy claims online, fast replacements, no fees

Checking for protection plans...

Recently Viewed

At a glance

Condition
New
Model
GA2100HDS-7A
Dimensions
1 x 1 x 1 in; 8 oz
Weight
8 oz
Display
Analog-Digital
Watch Movement Type
Japanese Quartz
Additional Features
Glow In The Dark, Shock Resistant
In the box
Battery

Description

Built with a Carbon Core Guard structure, the GA2100HDS-7A offers incredible strength that lives up to the G-SHOCK standard in shock resistance. That strength is delivered with a slim case and compact form, an engineering feat that Casio proudly details in its history of the GA2100. The slim design is not only tough, it boasts 200m water resistance (wr 20 bar) with a case that’s only 11.8mm thick.

Specs 34

Product Dimensions 1 x 1 x 1 inches; 8 ounces
Item model number GA2100HDS-7A
Department Unisex
Batteries 1 Nonstandard Battery batteries required.
Manufacturer Casio
Product Warranty For warranty information about this product, please click here
Display Analog-Digital
Watch Movement Type Japanese Quartz

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Nov 16

Yes, absolutely! This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2027.

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
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

Nice
Review Image by eltaling
So far it looks like a genuine G-Shock hidden glow with good build quality. We'll see how it holds up over time. (One note: it doesn't come in a metal box like other Casio G-Shocks.)
Reviewed in the United States on October 8, 2026 by eltaling
So clean
Amazing watch. Gotta love the casioaks
Reviewed in the United States on August 3, 2026 by Amazon Customer
Solid, fun, beater watch
Review Image by Amazon Customer
Review Image by Amazon Customer
G Shocks are elite. Keep great time, are basically indestructible, and look cool. It is quite large/bulky, so you need to be okay wearing something with a lot of wrist presence, and the white color is BRIGHT making it stand out even more especially against darker or tanned skin tones. The backlight is kinda “meh.” And I’d say comfort level is mid. Lightweight but plastic strap isn’t as soft and smooth as other materials. Overall good value for the price for a fun looking watch that you can beat the heck out of. ... show more
Reviewed in the United States on September 5, 2026 by Amazon Customer
Calidad y perfecto
Una gran Calidad! Todo a la perfección
Reviewed in the United States on September 20, 2026 by Harold
Love it
It is a Casio 2100, what else do I need to say?
Reviewed in the United States on August 3, 2026 by Bobby-N-De
G shock
Review Image by Liam Bulsara
Amazing
Reviewed in the United States on July 1, 2026 by Liam Bulsara
Readable watch easy to use.
This watch is wonderful. Set-up instructions easy to use. I’m 70 years old and could do it. I can see the dial. This watch has been in water, horseback riding, shower and still remains accurate.
Reviewed in the United States on February 24, 2026 by John T. Robinson
Casio -GA-2100HDS-7A Cool hidden glow
G-SHOCK GA-2100HDS-7A Well, I guess I got the one that was a dud. My minute hand fell off and it seems to be gaining time for the analog clock. The hidden lume is weak, but if you give it a few minutes of bright light it will give you a light blue glow. Overall it's a cool watch and I just got one with some issues. I have the tools to work on watches so I am not going to make a big deal out of it. I just hope my analog clock doesn't keep on gaining too much time per day. My only complaint is that all my other G-Shocks have an auto backlight and the Hidden glow series doesn't seem to have it. Sort of a let down for a "g-shock". ... show more
Reviewed in the United States on November 20, 2025 by Roger
How it works
Checking for best price...