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Casio - GM-2100BB-1AER - Watch - Men - Quartz - G-Shock
Casio - GM-2100BB-1AER - Watch - Men - Quartz - G-Shock
Casio - GM-2100BB-1AER - Watch - Men - Quartz - G-Shock
Casio - GM-2100BB-1AER - Watch - Men - Quartz - G-Shock
Casio - GM-2100BB-1AER - Watch - Men - Quartz - G-Shock
Casio - GM-2100BB-1AER - Watch - Men - Quartz - G-Shock
Casio - GM-2100BB-1AER - Watch - Men - Quartz - G-Shock
Casio - GM-2100BB-1AER - Watch - Men - Quartz - G-Shock
Casio - GM-2100BB-1AER - Watch - Men - Quartz - G-Shock
Casio - GM-2100BB-1AER - Watch - Men - Quartz - G-Shock
Casio - GM-2100BB-1AER - Watch - Men - Quartz - G-Shock
Casio - GM-2100BB-1AER - Watch - Men - Quartz - G-Shock
Casio - GM-2100BB-1AER - Watch - Men - Quartz - G-Shock
Casio - GM-2100BB-1AER - Watch - Men - Quartz - G-Shock
Casio - GM-2100BB-1AER - Watch - Men - Quartz - G-Shock
Casio - GM-2100BB-1AER - Watch - Men - Quartz - G-Shock

Casio - GM-2100BB-1AER - Watch - Men - Quartz - G-Shock

$182.17

(3,419 reviews)

Go sleek, sharp and bold with a G-SHOCK standard-bearer in a metal-clad octagonal take on the original iconic design. Forged in stainless steel with rounded hairline finish, the strong bezel says super style all the way. The dial is treated with vapour deposition finish for a meticulously detailed metallic look that suits a classic metal G-SHOCK timepiece. Incremental variations in the detailed square dot texturing on the wristband take casual urethane materials up a notch. Choose your statement in silver, blue, grey, or grey and red.

Go sleek, sharp and bold with a G-SHOCK standard-bearer in a metal-clad octagonal take on the original iconic design. Forged in stainless steel with rounded hairline finish, the strong bezel says super style all the way. The dial is treated with vapour deposition finish for a meticulously detailed metallic look that suits a classic metal G-SHOCK timepiece. Incremental variations in the detailed square dot texturing on the wristband take casual urethane materials up a notch. Choose your statement in silver, blue, grey, or grey and red.

Casio - GM-2100BB-1AER - Watch - Men - Quartz - G-Shock

(3,419 reviews)

Go sleek, sharp and bold with a G-SHOCK standard-bearer in a metal-clad octagonal take on the original iconic design. Forged in stainless steel with rounded hairline finish, the strong bezel says super style all the way. The dial is treated with vapour deposition finish for a meticulously detailed metallic look that suits a classic metal G-SHOCK timepiece. Incremental variations in the detailed square dot texturing on the wristband take casual urethane materials up a notch. Choose your statement in silver, blue, grey, or grey and red.

Go sleek, sharp and bold with a G-SHOCK standard-bearer in a metal-clad octagonal take on the original iconic design. Forged in stainless steel with rounded hairline finish, the strong bezel says super style all the way. The dial is treated with vapour deposition finish for a meticulously detailed metallic look that suits a classic metal G-SHOCK timepiece. Incremental variations in the detailed square dot texturing on the wristband take casual urethane materials up a notch. Choose your statement in silver, blue, grey, or grey and red.

$182.17 - $507.47

in 32 offers

The lowest price for Casio - GM-2100BB-1AER - Watch - Men - Quartz - G-Shock right now is $182.17 at banzaihobby.com, compared across 18 retailers.

The all-time low was $147.75 on 13 Sept 2026 — today's price is 23% above the lowest ever. It has been notably cheaper before — worth setting a price alert.

Prices last updated 1 Nov 2026.

Colour:

Blue
Blue (sky Blue)
Green, (lime Green)
Limited Color: Navy
Limited color: Pattern bezel (black)
Limited Edition Color: Pattern Bezel (Silver)
Limited Model: Rio Ishikawa Signature Model
Orange
Red
Rose Gold
Silver

Price comparison

Price data powered by pricesAPI.io

Last updated at 01/11/2026 02:24:57

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

$182.17

CASIO G-SHOCK GM-2100BB

Delivery $28.44

https://www.google.com/s2/favicons?domain=jewelervandam.com&sz=64jewelervandam.com

$219.00

Casio G-Shock GM-2100BB-1AER

Delivery between 5–9 Nov $50

https://www.google.com/s2/favicons?domain=granarelli.com&sz=64Gioielleria Granarelli

$261.69

G-Shock Protection Black

https://www.google.com/s2/favicons?domain=stockx.com&sz=64StockX

$277.00

Casio G-Shock GM-2100BB-1AER

Delivery $34.95

https://www.google.com/s2/favicons?domain=pause-montres.fr&sz=64PAUSE

$298.00

G-Shock - GM-2100BB-1AER - Toulouse Watch Shop - Pause

Delivery $48.86

https://www.google.com/s2/favicons?domain=gadgeticloud.com&sz=64GadgetiCloud

$298.29

Casio G-Shock GM-2100BB-1AER Men's Analog-Digital Watch, Black Metal & Resin

Free delivery between 9–13 Nov

https://www.google.com/s2/favicons?domain=au.firstclasswatches.com&sz=64First Class Watches

$305.00

Casio G-Shock All Black Metal Series GM-2100BB-1AER Watch

Free delivery

https://www.google.com/s2/favicons?domain=chrono24.com.au&sz=64Chrono24.com.au

$306.00

Casio G-Shock GM-2100BB-1A

Free delivery

https://www.google.com/s2/favicons?domain=tictacarea.com&sz=64Tictacarea.com

$309.70

Casio g-shock watch gm-2100bb-1aer

Free delivery

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

$311.00

Casio G-Shock Gents Watch GM-2100BB-1AER

Delivery $60.92

Price history

Price history

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

Reviews

20 June 2023wheymen

originally posted on shopee.sg

Suitable Occasion:Daily wear.Styling:Business casual aesthetics.Product received is the same as advertised.

Brilliant
17 April 2023Bailey C.

originally posted on g-shock.co.uk

Lovely watch, received without a scratch, works perfectly and easy to use.

CASIO IS WHERE IT IS AT!!!!!
5 December 2019dla1996

originally posted on ebay.com

CASIO WATCHES - always wonderful and ridiculous value.....

Specification

Time IndicationDigital
MechanismQuartz
Case MaterialStainless Steel + Carbon
Colour SphereBlack
Material of StrapResin

Price comparison

Updated 2 days 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=banzaihobby.com&sz=64
banzaihobby.com

$182.17

CASIO G-SHOCK GM-2100BB

Delivery $28.44

https://www.google.com/s2/favicons?domain=jewelervandam.com&sz=64
jewelervandam.com

$219.00

Out of stock

Casio G-Shock GM-2100BB-1AER

Delivery between 5–9 Nov $50

https://www.google.com/s2/favicons?domain=granarelli.com&sz=64
Gioielleria Granarelli

$261.69

G-Shock Protection Black

https://www.google.com/s2/favicons?domain=stockx.com&sz=64
StockX

$277.00

Casio G-Shock GM-2100BB-1AER

Delivery $34.95

https://www.google.com/s2/favicons?domain=pause-montres.fr&sz=64
PAUSE

$298.00

G-Shock - GM-2100BB-1AER - Toulouse Watch Shop - Pause

Delivery $48.86

Price history

Price history

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

Reviews

20 June 2023

Suitable Occasion:Daily wear.Styling:Business casual aesthetics.Product received is the same as advertised.

wheymen originally posted on shopee.sg
Brilliant
17 April 2023

Lovely watch, received without a scratch, works perfectly and easy to use.

Bailey C. originally posted on g-shock.co.uk
CASIO IS WHERE IT IS AT!!!!!
5 December 2019

CASIO WATCHES - always wonderful and ridiculous value.....

dla1996 originally posted on ebay.com
Watch great and speedily delivered.
16 July 2023

Watch great and speedily delivered.

Paul M. originally posted on g-shock.co.uk

Specification

Time IndicationDigital
MechanismQuartz
Case MaterialStainless Steel + Carbon
Colour SphereBlack
Material of StrapResin

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