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Casio Watch G-Shock GBM-2100-1AER - Casio
Casio Watch G-Shock GBM-2100-1AER - Casio
Casio Watch G-Shock GBM-2100-1AER - Casio
Casio Watch G-Shock GBM-2100-1AER - Casio
Casio Watch G-Shock GBM-2100-1AER - Casio
Casio Watch G-Shock GBM-2100-1AER - Casio

Casio Watch G-Shock GBM-2100-1AER - Casio

$290.00

(781 reviews)

Introducing the Classic GBM-2100-1AER, a timeless masterpiece designed for gentlemen who appreciate style and functionality. This analog watch from the renowned brand G-Shock is a must-have accessory for any fashion-forward individual. The Classic GBM-2100-1AER features a round shape and a sleek silver-colored watch case, exuding elegance and sophistication. The black dial adds a touch of mystery and allure to this timepiece, making it perfect for both formal occasions and everyday wear. Constructed with high-quality resin, the watch band ensures durability and comfort throughout the day. The buckle closure type provides a secure fit, allowing you to wear this watch with confidence and ease. Designed for the Autumn/Winter seasonal collection, this watch embraces the essence of the colder months, making it a versatile accessory that complements any outfit. Whether you're attending a business meeting or enjoying a casual outing, the Classic GBM-2100-1AER effortlessly enhances your style. Featuring a digital time indication, this watch offers precise and accurate timekeeping. The automatic calendar function adds convenience to your daily routine, ensuring you never miss an important date or appointment. With a water resistance of 20 ATM (20 bar), this watch is built to withstand various water activities, making it suitable for swimming, snorkeling, and other water sports. The mineral glass material protects the watch face from scratches and ensures long-lasting clarity. Elevate your fashion game with the Classic GBM-2100-1AER. Embrace the perfect blend of style, functionality, and durability.

Introducing the Classic GBM-2100-1AER, a timeless masterpiece designed for gentlemen who appreciate style and functionality. This analog watch from the renowned brand G-Shock is a must-have accessory for any fashion-forward individual. The Classic GBM-2100-1AER features a round shape and a sleek silver-colored watch case, exuding elegance and sophistication. The black dial adds a touch of mystery and allure to this timepiece, making it perfect for both formal occasions and everyday wear. Constructed with high-quality resin, the watch band ensures durability and comfort throughout the day. The buckle closure type provides a secure fit, allowing you to wear this watch with confidence and ease. Designed for the Autumn/Winter seasonal collection, this watch embraces the essence of the colder months, making it a versatile accessory that complements any outfit. Whether you're attending a business meeting or enjoying a casual outing, the Classic GBM-2100-1AER effortlessly enhances your style. Featuring a digital time indication, this watch offers precise and accurate timekeeping. The automatic calendar function adds convenience to your daily routine, ensuring you never miss an important date or appointment. With a water resistance of 20 ATM (20 bar), this watch is built to withstand various water activities, making it suitable for swimming, snorkeling, and other water sports. The mineral glass material protects the watch face from scratches and ensures long-lasting clarity. Elevate your fashion game with the Classic GBM-2100-1AER. Embrace the perfect blend of style, functionality, and durability.

Casio Watch G-Shock GBM-2100-1AER - Casio

(781 reviews)

Introducing the Classic GBM-2100-1AER, a timeless masterpiece designed for gentlemen who appreciate style and functionality. This analog watch from the renowned brand G-Shock is a must-have accessory for any fashion-forward individual. The Classic GBM-2100-1AER features a round shape and a sleek silver-colored watch case, exuding elegance and sophistication. The black dial adds a touch of mystery and allure to this timepiece, making it perfect for both formal occasions and everyday wear. Constructed with high-quality resin, the watch band ensures durability and comfort throughout the day. The buckle closure type provides a secure fit, allowing you to wear this watch with confidence and ease. Designed for the Autumn/Winter seasonal collection, this watch embraces the essence of the colder months, making it a versatile accessory that complements any outfit. Whether you're attending a business meeting or enjoying a casual outing, the Classic GBM-2100-1AER effortlessly enhances your style. Featuring a digital time indication, this watch offers precise and accurate timekeeping. The automatic calendar function adds convenience to your daily routine, ensuring you never miss an important date or appointment. With a water resistance of 20 ATM (20 bar), this watch is built to withstand various water activities, making it suitable for swimming, snorkeling, and other water sports. The mineral glass material protects the watch face from scratches and ensures long-lasting clarity. Elevate your fashion game with the Classic GBM-2100-1AER. Embrace the perfect blend of style, functionality, and durability.

Introducing the Classic GBM-2100-1AER, a timeless masterpiece designed for gentlemen who appreciate style and functionality. This analog watch from the renowned brand G-Shock is a must-have accessory for any fashion-forward individual. The Classic GBM-2100-1AER features a round shape and a sleek silver-colored watch case, exuding elegance and sophistication. The black dial adds a touch of mystery and allure to this timepiece, making it perfect for both formal occasions and everyday wear. Constructed with high-quality resin, the watch band ensures durability and comfort throughout the day. The buckle closure type provides a secure fit, allowing you to wear this watch with confidence and ease. Designed for the Autumn/Winter seasonal collection, this watch embraces the essence of the colder months, making it a versatile accessory that complements any outfit. Whether you're attending a business meeting or enjoying a casual outing, the Classic GBM-2100-1AER effortlessly enhances your style. Featuring a digital time indication, this watch offers precise and accurate timekeeping. The automatic calendar function adds convenience to your daily routine, ensuring you never miss an important date or appointment. With a water resistance of 20 ATM (20 bar), this watch is built to withstand various water activities, making it suitable for swimming, snorkeling, and other water sports. The mineral glass material protects the watch face from scratches and ensures long-lasting clarity. Elevate your fashion game with the Classic GBM-2100-1AER. Embrace the perfect blend of style, functionality, and durability.

$290.00 - $599.00

in 33 offers

The lowest price for Casio Watch G-Shock GBM-2100-1AER - Casio right now is $290.00 at StockX, compared across 19 retailers.

The all-time low was $249.00 on 23 Oct 2025 — today's price is 16% above the lowest ever. That's a little above the best price we've seen.

Prices last updated 28 June 2026.

Price comparison

Price data powered by pricesAPI.io

Last updated at 28/06/2026 08:33:30

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
StockX

$290.00

Casio G-STEEL GBM-2100A-1A2

Delivery $34.95

StockX

$356.00

Casio G-STEEL GBM-2100-1A

Delivery $34.95

ippojapanwatch.com

$303.39

CASIO GBM-2100A-1A2JF Men's G-SHOCK Metal Covered Model | IPPO Japan

Delivery $44.83

ippojapanwatch.com

$319.06

CASIO GBM-2100-1AJF Men's G-SHOCK Metal Covered Model | IPPO Japan

Delivery $44.83

Zimson Watches

$307.32

CASIO G-Shock G-Steel Green Dial Men 44.4mm G1583 GBM-2100A-1A3

Delivery $0.31

Watchello

$315.00

CASIO G-Shock GBM-2100-1AER Gent Quartz Resin Watch

Delivery $90.54

Watchello

$331.00

CASIO G-Shock GBM-2100A-1A3ER Gent Quartz Resin Watch

Delivery $90.54

Watchello

$331.00

CASIO G-Shock GBM-2100A-1A2ER Gent Quartz Resin Watch

Delivery $90.54

DownUnderWatches.com

$317.00

Casio G-Shock G-Steel Analog Digital Smartphone Link Ice Blue Dial Tough Solar GBM-2100A-1A2 200M Men's Watch

Free delivery

DownUnderWatches.com

$317.00

Casio G-Shock G-Steel Analog Digital Smartphone Link Resin Strap Green Dial Tough Solar GBM-2100A-1A3 200M Men's Watch

Free delivery

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Reviews

26 October 2024

originally posted on myntra.com

"Awesome & authentic! I verified it on the Casio website as well. This is my first major purchase from Casio and as a lifelong watch enthusiast it feels special. I've been wanting a Casio watch for over a year and finally found this one at a great price so I didn?t hesitate to grab it. I absolutely love it! The only downside is the negative display ? if that?s not your style I?d recommend choosing the blue or silver option instead."

I really like the clear
1 August 2024Simon B.

originally posted on g-shock.co.uk

I really like the clear analogue face and once I downloaded the correct app to set the watch was easily done. Looks real quality and really happy with it. Only slight issue for me is size of digital numerals. More my own eyesight but at certain times analogue hands obscure it. There is a function to move hands from mode area but it’s not easy to remember. But small things. Very happy

Review Title
12 October 2024Jake

originally posted on firstclasswatches.co.uk

Fantastic watch, positive display is a delight, the added lume at 3/6/9 was much needed. Overall I'd say this watch is on par with the GM-B2100 but for less than half the cost due to the resin band!The band is very comfortable, arguably an upgrade, compared to the standard resin GA-B2100 straps.I only have a 6"~ wrist and this newer GBM-2100 strap fits me on the tightest hole (phew!) - whereas I use the 3rd tightest hole on a GA-B2100 strap.The service from firstclasswatches was outstanding as always. I've used these guys lots!!!

Specification

AlarmYes
BacklightYes
Maximum Bracelet Length160 - 210mm
Bracelet MaterialRubber
Case Diameter44 mm

Price comparison

Updated 1 day ago
Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
StockX

$290.00

Casio G-STEEL GBM-2100A-1A2

Delivery $34.95

StockX

$356.00

Casio G-STEEL GBM-2100-1A

Delivery $34.95

ippojapanwatch.com

$303.39

CASIO GBM-2100A-1A2JF Men's G-SHOCK Metal Covered Model | IPPO Japan

Delivery $44.83

ippojapanwatch.com

$319.06

CASIO GBM-2100-1AJF Men's G-SHOCK Metal Covered Model | IPPO Japan

Delivery $44.83

Zimson Watches

$307.32

CASIO G-Shock G-Steel Green Dial Men 44.4mm G1583 GBM-2100A-1A3

Delivery $0.31

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Reviews

26 October 2024

"Awesome & authentic! I verified it on the Casio website as well. This is my first major purchase from Casio and as a lifelong watch enthusiast it feels special. I've been wanting a Casio watch for over a year and finally found this one at a great price so I didn?t hesitate to grab it. I absolutely love it! The only downside is the negative display ? if that?s not your style I?d recommend choosing the blue or silver option instead."

originally posted on myntra.com
I really like the clear
1 August 2024

I really like the clear analogue face and once I downloaded the correct app to set the watch was easily done. Looks real quality and really happy with it. Only slight issue for me is size of digital numerals. More my own eyesight but at certain times analogue hands obscure it. There is a function to move hands from mode area but it’s not easy to remember. But small things. Very happy

Simon B. originally posted on g-shock.co.uk
Review Title
12 October 2024

Fantastic watch, positive display is a delight, the added lume at 3/6/9 was much needed. Overall I'd say this watch is on par with the GM-B2100 but for less than half the cost due to the resin band!The band is very comfortable, arguably an upgrade, compared to the standard resin GA-B2100 straps.I only have a 6"~ wrist and this newer GBM-2100 strap fits me on the tightest hole (phew!) - whereas I use the 3rd tightest hole on a GA-B2100 strap.The service from firstclasswatches was outstanding as always. I've used these guys lots!!!

Jake originally posted on firstclasswatches.co.uk
Review of Metal Covered 2100 Ice Blue Bluetooth Solar Watch
16 September 2024

I absolutely love this latest iteration of the iconic CasiOak and it is by far my favourite that I own so far. The metal case with ice blue solar dial is just beautiful. Really fast delivery by Francis & Gaye Jewellers who also offered a lower price than most other retailers. Very happy purchase!

Reviewed by Francis & Gaye Ltd customer originally posted on francisandgaye.co.uk
They look even cooler in person!
12 December 2023

I am pretty rough on my watches (not intentionally), so I generally stick with the G-Shock brand watches, simply because they can withstand just about anything you throw at them. But they tend to be a bit on the large and bulky side. With a 44mm bezel (vs the standard 50mm or bigger G-Shocks), the 2100 is much smaller and more practical for regular use, and stylish enough to wear when 'dressing up', while maintaining the same rugged design G-Shock is known for. I also like that there are several varieties of the 2100 to choose from depending on your style and taste (I chose the blackout design because I like the stealthy look of them). But if you are one-the-fence about these watches, I suggest going to the store and seeing them in person! Looking at them online, it ... MoreI am pretty rough on my watches (not intentionally), so I generally stick with the G-Shock brand watches, simply because they can withstand just about anything you throw at them. But they tend to be a bit on the large and bulky side. With a 44mm bezel (vs the standard 50mm or bigger G-Shocks), the 2100 is much smaller and more practical for regular use, and stylish enough to wear when 'dressing up', while maintaining the same rugged design G-Shock is known for. I also like that there are several varieties of the 2100 to choose from depending on your style and taste (I chose the blackout design because I like the stealthy look of them). But if you are one-the-fence about these watches, I suggest going to the store and seeing them in person! Looking at them online, it was difficult to see just how sleek these G-Shocks are, but once I tried them on, I was instantly sold! Definitely not your typical G-Shock. My only issue is the watch band. They seem a little chintzy, but we'll see.

Daniel originally posted on macys.com
This G Shock is great.
22 September 2024

Just purchased this Casio G Shock today and it's fantastic. My local Macys had it in stock like the website said and the transaction was quick and easy. Watch is lightweight, yet rugged as you expect from Casio G Shock. I wore it all day and it felt great. Wears actually smaller than it's dimensions, which is great. The all-black stealth look is really nice. Its only one day, but I expect many years of great service from this Casio just like other Casio's I've owned.

Tommy originally posted on macys.com

Specification

AlarmYes
BacklightYes
Maximum Bracelet Length160 - 210mm
Bracelet MaterialRubber
Case Diameter44 mm

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