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Price comparison

Price data powered by pricesAPI.io

Last updated at 27/08/2026 16:41:55

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
https://www.google.com/s2/favicons?domain=watchexpress.com.au&sz=64Blacktown Watch Express

$174.30

GA2100-1A

Free delivery

https://www.google.com/s2/favicons?domain=cashconverters.com.au&sz=64Cash Converters

$189.00

Casio Watch Mens G-Shock Analog-Digital Sports Watch - Ga-2100 Watch

Delivery $14.20

https://www.google.com/s2/favicons?domain=ebay.com.au&sz=64eBay.com.au

$214.50

Casio Octagon Series | G-shock Carbon Core | Octagon Series | Black

Free delivery

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=ebay.com.au&sz=64eBay.com.au

$281.89

Casio G-shock/2100 Series Ga-b2100-1ajf Men's Used Watch 22011

Free delivery

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=ebay.com.au&sz=64eBay.com.au

$301.79

Casio G-shock Watch Resin Band Digital Sport Black From Japan

Delivery $30.63

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=ebay.com.au&sz=64eBay.com.au

$302.57

Casio G-shock Watch Resin Band Digital Sport Black From Japan

Delivery $53.90

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=ebay.com.au&sz=64eBay.com.au

$326.79

Casio 2100 Series Ga-2100-1afjf Black Carbon Octagon 45.4mm Watch

Free delivery

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

Price history

Price history

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

Reviews

15 June 2023Jake L.

originally posted on etsy.com

Hell yeah love it

15 November 2023vngaiha87

originally posted on invella.com

I bought this mod on 4th November 2023 and I received it on 13th November 2023. As soon as I received I opened it and checked the items in the box, it was completely insane because the materials- the casing and straps looked genuine, and it came with moding tools. Im very happy

Price comparison

Updated about 6 hours ago
Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
https://www.google.com/s2/favicons?domain=watchexpress.com.au&sz=64
Blacktown Watch Express

$174.30

Out of stock

GA2100-1A

Free delivery

https://www.google.com/s2/favicons?domain=cashconverters.com.au&sz=64
Cash Converters

$189.00

Casio Watch Mens G-Shock Analog-Digital Sports Watch - Ga-2100 Watch

Delivery $14.20

https://www.google.com/s2/favicons?domain=ebay.com.au&sz=64
eBay.com.au

$214.50

Casio Octagon Series | G-shock Carbon Core | Octagon Series | Black

Free delivery

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=ebay.com.au&sz=64
eBay.com.au

$281.89

Casio G-shock/2100 Series Ga-b2100-1ajf Men's Used Watch 22011

Free delivery

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=ebay.com.au&sz=64
eBay.com.au

$301.79

Casio G-shock Watch Resin Band Digital Sport Black From Japan

Delivery $30.63

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

Price history

Price history

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

Reviews

15 June 2023

Hell yeah love it

Jake L. originally posted on etsy.com
15 November 2023

I bought this mod on 4th November 2023 and I received it on 13th November 2023. As soon as I received I opened it and checked the items in the box, it was completely insane because the materials- the casing and straps looked genuine, and it came with moding tools. Im very happy

vngaiha87 originally posted on invella.com

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Casio G-Shock Watch GA-2100-1A

Casio G-Shock Watch GA-2100-1A

$174.30

(13,972 reviews)

Uncompromising Strength Meets Sophisticated Design Experience the perfect blend of style, functionality, and durability with the G-Shock CasiOak Carbon Core Guard GA2100-1A1. As an illustrious heir of the original DW-5000C introduced in 1983, this watch evokes G-SHOCK’s timeless appeal while pushing the boundaries of resilience. Signature Octagonal Form This model sports the unique octagonal shape reminiscent of the pioneering DW-5000C. The classic analog-digital timekeeping is seamlessly integrated into a straightforward, clutter-free design, without compromising the iconic G-SHOCK toughness. Thin Yet Robust With the high-strength resin material reinforced with carbon fibers, this watch boasts an impressively thin case. At just 11.8 mm, it stands as the thinnest among G-SHOCK combination models, offering a sleek profile without sacrificing robustness. Featuring the exclusive Neobrite technology, the GA-2100-1A and GA-2100-4A models deliver enhanced visibility in low-light conditions. Carbon Core Guard Structure The innovative carbon core guard structure provides advanced protection to the module. By enclosing it in a carbon case, the watch gains exceptional strength, crack resistance, and durability. This case is constructed with fine resin infused with carbon fibers, affirming the watch's commitment to enduring toughness.

Uncompromising Strength Meets Sophisticated Design Experience the perfect blend of style, functionality, and durability with the G-Shock CasiOak Carbon Core Guard GA2100-1A1. As an illustrious heir of the original DW-5000C introduced in 1983, this watch evokes G-SHOCK’s timeless appeal while pushing the boundaries of resilience. Signature Octagonal Form This model sports the unique octagonal shape reminiscent of the pioneering DW-5000C. The classic analog-digital timekeeping is seamlessly integrated into a straightforward, clutter-free design, without compromising the iconic G-SHOCK toughness. Thin Yet Robust With the high-strength resin material reinforced with carbon fibers, this watch boasts an impressively thin case. At just 11.8 mm, it stands as the thinnest among G-SHOCK combination models, offering a sleek profile without sacrificing robustness. Featuring the exclusive Neobrite technology, the GA-2100-1A and GA-2100-4A models deliver enhanced visibility in low-light conditions. Carbon Core Guard Structure The innovative carbon core guard structure provides advanced protection to the module. By enclosing it in a carbon case, the watch gains exceptional strength, crack resistance, and durability. This case is constructed with fine resin infused with carbon fibers, affirming the watch's commitment to enduring toughness.

(13,972 reviews)

Uncompromising Strength Meets Sophisticated Design Experience the perfect blend of style, functionality, and durability with the G-Shock CasiOak Carbon Core Guard GA2100-1A1. As an illustrious heir of the original DW-5000C introduced in 1983, this watch evokes G-SHOCK’s timeless appeal while pushing the boundaries of resilience. Signature Octagonal Form This model sports the unique octagonal shape reminiscent of the pioneering DW-5000C. The classic analog-digital timekeeping is seamlessly integrated into a straightforward, clutter-free design, without compromising the iconic G-SHOCK toughness. Thin Yet Robust With the high-strength resin material reinforced with carbon fibers, this watch boasts an impressively thin case. At just 11.8 mm, it stands as the thinnest among G-SHOCK combination models, offering a sleek profile without sacrificing robustness. Featuring the exclusive Neobrite technology, the GA-2100-1A and GA-2100-4A models deliver enhanced visibility in low-light conditions. Carbon Core Guard Structure The innovative carbon core guard structure provides advanced protection to the module. By enclosing it in a carbon case, the watch gains exceptional strength, crack resistance, and durability. This case is constructed with fine resin infused with carbon fibers, affirming the watch's commitment to enduring toughness.

Uncompromising Strength Meets Sophisticated Design Experience the perfect blend of style, functionality, and durability with the G-Shock CasiOak Carbon Core Guard GA2100-1A1. As an illustrious heir of the original DW-5000C introduced in 1983, this watch evokes G-SHOCK’s timeless appeal while pushing the boundaries of resilience. Signature Octagonal Form This model sports the unique octagonal shape reminiscent of the pioneering DW-5000C. The classic analog-digital timekeeping is seamlessly integrated into a straightforward, clutter-free design, without compromising the iconic G-SHOCK toughness. Thin Yet Robust With the high-strength resin material reinforced with carbon fibers, this watch boasts an impressively thin case. At just 11.8 mm, it stands as the thinnest among G-SHOCK combination models, offering a sleek profile without sacrificing robustness. Featuring the exclusive Neobrite technology, the GA-2100-1A and GA-2100-4A models deliver enhanced visibility in low-light conditions. Carbon Core Guard Structure The innovative carbon core guard structure provides advanced protection to the module. By enclosing it in a carbon case, the watch gains exceptional strength, crack resistance, and durability. This case is constructed with fine resin infused with carbon fibers, affirming the watch's commitment to enduring toughness.

$174.30 - $326.79

in 7 offers

The lowest price for Casio G-Shock Watch GA-2100-1A right now is $174.30 at Blacktown Watch Express, compared across 3 retailers.

The all-time low was $93.93 on 24 Aug 2026 — today's price is 86% above the lowest ever. It has been notably cheaper before — worth setting a price alert.

Prices last updated 27 Aug 2026.