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BuyWisely is your one stop price comparison platform, delivering the best deals from over 20,000 online shops. We empower shoppers to make smart, cost-effective choices by offering transparent pricing, price history, and the latest deals across a broad range of products. With BuyWisely, your money goes further.

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Casio - GA-2100-2A2ER - Watch - Men - Quartz - G-Shock
Casio - GA-2100-2A2ER - Watch - Men - Quartz - G-Shock
Casio - GA-2100-2A2ER - Watch - Men - Quartz - G-Shock
Casio - GA-2100-2A2ER - Watch - Men - Quartz - G-Shock
Casio - GA-2100-2A2ER - Watch - Men - Quartz - G-Shock
Casio - GA-2100-2A2ER - Watch - Men - Quartz - G-Shock
Casio - GA-2100-2A2ER - Watch - Men - Quartz - G-Shock
Casio - GA-2100-2A2ER - Watch - Men - Quartz - G-Shock

Casio - GA-2100-2A2ER - Watch - Men - Quartz - G-Shock

(14,408 reviews)

What makes the Casio GA-2100 the perfect complement to any streetwear ensemble is the colour palette. It comes in various colours but this new edition is a monochrome colour. Underneath the hood, the GA-2100 has more than enough invested in engineering to match its good looks. Its Carbon Core Guard structure has stood the test of time in providing next-level toughness in a lightweight format. An auto-LED light also provides great legibility to the analogue-digital dial and LCD display. The resin band combined with 200-metre depth rating makes the GA-2100 the go-to piece come rain or shine. Features such as time zone settings, stopwatch function, countdown timers and alarms provide versatility and unbeatable utility.

What makes the Casio GA-2100 the perfect complement to any streetwear ensemble is the colour palette. It comes in various colours but this new edition is a monochrome colour. Underneath the hood, the GA-2100 has more than enough invested in engineering to match its good looks. Its Carbon Core Guard structure has stood the test of time in providing next-level toughness in a lightweight format. An auto-LED light also provides great legibility to the analogue-digital dial and LCD display. The resin band combined with 200-metre depth rating makes the GA-2100 the go-to piece come rain or shine. Features such as time zone settings, stopwatch function, countdown timers and alarms provide versatility and unbeatable utility.

$142.10 - $349.00

in 34 offers

Colour:

Casio - GA-2100-2A2ER - Watch - Men - Quartz - G-Shock
Casio - GA-2100-9A9ER - Watch - Men - Quartz - G-Shock
Casio G-Shock One Tone Series GA-2100-2A2JF

Casio - GA-2100-2A2ER - Watch - Men - Quartz - G-Shock

$142.10

(14,408 reviews)

What makes the Casio GA-2100 the perfect complement to any streetwear ensemble is the colour palette. It comes in various colours but this new edition is a monochrome colour. Underneath the hood, the GA-2100 has more than enough invested in engineering to match its good looks. Its Carbon Core Guard structure has stood the test of time in providing next-level toughness in a lightweight format. An auto-LED light also provides great legibility to the analogue-digital dial and LCD display. The resin band combined with 200-metre depth rating makes the GA-2100 the go-to piece come rain or shine. Features such as time zone settings, stopwatch function, countdown timers and alarms provide versatility and unbeatable utility.

What makes the Casio GA-2100 the perfect complement to any streetwear ensemble is the colour palette. It comes in various colours but this new edition is a monochrome colour. Underneath the hood, the GA-2100 has more than enough invested in engineering to match its good looks. Its Carbon Core Guard structure has stood the test of time in providing next-level toughness in a lightweight format. An auto-LED light also provides great legibility to the analogue-digital dial and LCD display. The resin band combined with 200-metre depth rating makes the GA-2100 the go-to piece come rain or shine. Features such as time zone settings, stopwatch function, countdown timers and alarms provide versatility and unbeatable utility.

Colour:
Casio - GA-2100-2A2ER - Watch - Men - Quartz - G-Shock
Casio - GA-2100-9A9ER - Watch - Men - Quartz - G-Shock
Casio G-Shock One Tone Series GA-2100-2A2JF

Price comparison

Last updated at 19/10/2025 00:11:30

Amazon

$159.93

available 3 days ago

Low stock


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Amazon.com.au

$171.99

Go to store


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Bogart's Jewellers

$126.00

available 2 days ago

Low stock

CreationWatches.com

$131.38

available 2 days ago

Low stock

Reebelo Australia

$142.10

Go to store

H S Johnson

$143.00

available 2 days ago

Low stock

eBay - h.s.johnson

$143.06

available 8 days ago

Low stock


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Gioielleria Rosaspina

$150.73

available 8 days ago

Low stock

eBay - wondersmall

$160.79

available 2 days ago

Low stock


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Gioielleria Cola

$163.00

available 2 days ago

Low stock

See 53 more history offers

japan-select

$279.48

available 18 days ago

Low stock

Christies Jewellery & Watches

$196.25

available 18 days ago

Low stock

Windup Watch Shop

$219.05

available 18 days ago

Low stock

eBay - b2b2_shop

$245.27

available 18 days ago

Low stock


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eBay - thewristoutlet

$149.39

available 18 days ago

Low stock


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eBay - augoods

$168.99

available 18 days ago

Low stock


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eBay - cb_watches

$164.52

available 18 days ago

Low stock


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eBay - golden.outlet

$226.70

available 18 days ago

Low stock


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ozDigitalWatch.com

$159.99

available 18 days ago

Low stock

Watch Kings

$189.00

available 18 days ago

Low stock

eBay - 2nd_stage

$497.05

available 18 days ago

Low stock


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!

eBay - dongdemun

$182.42

available 18 days ago

Low stock


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eBay - creationwatches

$159.24

available 18 days ago

Low stock


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Solestop.com

$151.88

available 18 days ago

Low stock

My Jewellers

$279.00

available 18 days ago

Low stock

eBay - negiman9

$282.49

available 18 days ago

Low stock


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eBay - japans.watch.shop

$264.22

available 18 days ago

Low stock


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eBay - akibashipping

$199.79

available 18 days ago

Low stock


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eBay - watchspree

$210.38

available 18 days ago

Low stock


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Vincent Watch

$227.00

available 18 days ago

Low stock

Microless.com

$144.45

available 18 days ago

Low stock

eBay - nagazon19

$274.18

available 18 days ago

Low stock


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!

Ramesh Watch Company

$170.20

available 18 days ago

Low stock

Discovery Japan

$235.61

available 18 days ago

Low stock

eBay - uhrcenter

$188.30

available 18 days ago

Low stock


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eBay - anything_store_japan

$207.53

available 18 days ago

Low stock


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eBay - thewatchfactoryaustralia

$223.00

available 19 days ago

Low stock


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Helvetic Time

$193.75

available 19 days ago

Low stock

Wallace Bishop Outlet

$229.00

available 19 days ago

Low stock

KICKSCREW

$188.00

available 19 days ago

Low stock

eBay - anzboo-74

$288.70

available 19 days ago

Low stock


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eBay - premium-japan

$158.20

available 19 days ago

Low stock


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eBay - marken_20191111

$889.23

available 19 days ago

Low stock


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eBay - merikai_jp

$191.50

available 19 days ago

Low stock


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GadgetiCloud

$160.00

available 19 days ago

Low stock

wafuu.com

$146.85

available 19 days ago

Low stock

eBay - archm-suspension

$318.12

available 19 days ago

Low stock


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eBay - samuraisellercooljapanc.t

$195.44

available 19 days ago

Low stock


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RedDeerWatches.com

$249.79

available 19 days ago

Low stock

PublicWatch.com

$209.00

available 19 days ago

Low stock

eBay - fashemco

$279.99

available 19 days ago

Low stock


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!

Japan With Love

$260.00

available 19 days ago

Low stock

eBay - caswatc-34

$151.00

available 19 days ago

Low stock


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eBay - japandesignlove

$263.94

available 19 days ago

Low stock


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Azuline

$196.00

available 19 days ago

Low stock

eBay - priced2clearau

$265.00

available 19 days ago

Low stock


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fashemco.com

$271.95

available about 1 month ago

Low stock

TicTacArea

$137.13

available about 1 month ago

Low stock

i-Watch

$151.21

available about 1 month ago

Low stock

desertcart.com.au

$206.40

available about 1 month ago

Low stock

PrettyNetty.com

$129.00

available about 1 month ago

Low stock

au.ShopBetter24.com

$148.00

available about 2 months ago

Low stock

McRichard Designer Brands

$343.90

available 3 months ago

Low stock

Price history

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​

Price history

​
​

Specification

Time IndicationAnalogue - Digital
MechanismQuartz
Case MaterialResin + Carbon
Colour SphereBlue
Material of StrapResin

Price comparison

Updated about 20 hours ago
Amazon

$159.93

Low Stock
Amazon.com.au

$171.99

Bogart's Jewellers

$126.00

Low Stock
CreationWatches.com

$131.38

Low Stock
Reebelo Australia

$142.10

See 53 more history offers

japan-select

$279.48

Low Stock
Christies Jewellery & Watches

$196.25

Low Stock
Windup Watch Shop

$219.05

Low Stock
eBay - b2b2_shop

$245.27

Low Stock
eBay - thewristoutlet

$149.39

Low Stock
eBay - augoods

$168.99

Low Stock
eBay - cb_watches

$164.52

Low Stock
eBay - golden.outlet

$226.70

Low Stock
ozDigitalWatch.com

$159.99

Low Stock
Watch Kings

$189.00

Low Stock
eBay - 2nd_stage

$497.05

Low Stock
eBay - dongdemun

$182.42

Low Stock
eBay - creationwatches

$159.24

Low Stock
Solestop.com

$151.88

Low Stock
My Jewellers

$279.00

Low Stock
eBay - negiman9

$282.49

Low Stock
eBay - japans.watch.shop

$264.22

Low Stock
eBay - akibashipping

$199.79

Low Stock
eBay - watchspree

$210.38

Low Stock
Vincent Watch

$227.00

Low Stock
Microless.com

$144.45

Low Stock
eBay - nagazon19

$274.18

Low Stock
Ramesh Watch Company

$170.20

Low Stock
Discovery Japan

$235.61

Low Stock
eBay - uhrcenter

$188.30

Low Stock
eBay - anything_store_japan

$207.53

Low Stock
eBay - thewatchfactoryaustralia

$223.00

Low Stock
Helvetic Time

$193.75

Low Stock
Wallace Bishop Outlet

$229.00

Low Stock
KICKSCREW

$188.00

Low Stock
eBay - anzboo-74

$288.70

Low Stock
eBay - premium-japan

$158.20

Low Stock
eBay - marken_20191111

$889.23

Low Stock
eBay - merikai_jp

$191.50

Low Stock
GadgetiCloud

$160.00

Low Stock
wafuu.com

$146.85

Low Stock
eBay - archm-suspension

$318.12

Low Stock
eBay - samuraisellercooljapanc.t

$195.44

Low Stock
RedDeerWatches.com

$249.79

Low Stock
PublicWatch.com

$209.00

Low Stock
eBay - fashemco

$279.99

Low Stock
Japan With Love

$260.00

Low Stock
eBay - caswatc-34

$151.00

Low Stock
eBay - japandesignlove

$263.94

Low Stock
Azuline

$196.00

Low Stock
eBay - priced2clearau

$265.00

Low Stock
fashemco.com

$271.95

Low Stock
TicTacArea

$137.13

Low Stock
i-Watch

$151.21

Low Stock
desertcart.com.au

$206.40

Low Stock
PrettyNetty.com

$129.00

Low Stock
au.ShopBetter24.com

$148.00

Low Stock
McRichard Designer Brands

$343.90

Low Stock

Price history

​
​

Price history

​
​

Specification

Time IndicationAnalogue - Digital
MechanismQuartz
Case MaterialResin + Carbon
Colour SphereBlue
Material of StrapResin