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G-Shock GA-2100-2AER Watch
G-Shock GA-2100-2AER Watch
G-Shock GA-2100-2AER Watch
G-Shock GA-2100-2AER Watch
G-Shock GA-2100-2AER Watch
G-Shock GA-2100-2AER Watch
G-Shock GA-2100-2AER Watch
G-Shock GA-2100-2AER Watch
G-Shock GA-2100-2AER Watch
G-Shock GA-2100-2AER Watch
G-Shock GA-2100-2AER Watch

G-Shock GA-2100-2AER Watch

(15,786 reviews)

The GA-2100 had HUGE success last year, and so Casio has dropped the iconic G-Shock design in fresh shades for 2021. Building on the famous octagonal shape, it features a chic black face with bold hour and minutes hands powered by reliable quartz movement, while the shock resistant structure protects against impact and vibration. This bold design comes together with a stylish blue resin strap for effortless wear come day or night. Still water resistant up to 200m and with a stopwatch, world time and alarm functions - it’s geared-up for adventure.

The GA-2100 had HUGE success last year, and so Casio has dropped the iconic G-Shock design in fresh shades for 2021. Building on the famous octagonal shape, it features a chic black face with bold hour and minutes hands powered by reliable quartz movement, while the shock resistant structure protects against impact and vibration. This bold design comes together with a stylish blue resin strap for effortless wear come day or night. Still water resistant up to 200m and with a stopwatch, world time and alarm functions - it’s geared-up for adventure.

$132.00 - $364.25

in 87 offers

Colour:

G-Shock GA-2100-2AER Watch
Watch Casio G-Shock GA-2100-1A1ER
G-Shock GA-2100FR-5AER Watch - Mystic Forest
G-Shock GA2100SKE-7A Transparent/Black One Size
G-Shock GA2100BWP-2A Watch
G-Shock GA2100CA-8A Watch
G-Shock GA2100SKE-7A Transparent/Black One Size
G-Shock GA-2100FR-3AER Watch - Mystic Forest
G-Shock GA2100-4A Watch Red
Casio G-Shock GA2100-1A1
G-Shock GA2100NN Digital Glitch
Casio Watch G-Shock GA-2100-7AER - Casio

G-Shock GA-2100-2AER Watch

$132.00

(15,786 reviews)

The GA-2100 had HUGE success last year, and so Casio has dropped the iconic G-Shock design in fresh shades for 2021. Building on the famous octagonal shape, it features a chic black face with bold hour and minutes hands powered by reliable quartz movement, while the shock resistant structure protects against impact and vibration. This bold design comes together with a stylish blue resin strap for effortless wear come day or night. Still water resistant up to 200m and with a stopwatch, world time and alarm functions - it’s geared-up for adventure.

The GA-2100 had HUGE success last year, and so Casio has dropped the iconic G-Shock design in fresh shades for 2021. Building on the famous octagonal shape, it features a chic black face with bold hour and minutes hands powered by reliable quartz movement, while the shock resistant structure protects against impact and vibration. This bold design comes together with a stylish blue resin strap for effortless wear come day or night. Still water resistant up to 200m and with a stopwatch, world time and alarm functions - it’s geared-up for adventure.

Colour:
G-Shock GA-2100-2AER Watch
Watch Casio G-Shock GA-2100-1A1ER
G-Shock GA-2100FR-5AER Watch - Mystic Forest
G-Shock GA2100SKE-7A Transparent/Black One Size
G-Shock GA2100BWP-2A Watch
G-Shock GA2100CA-8A Watch
G-Shock GA2100SKE-7A Transparent/Black One Size
G-Shock GA-2100FR-3AER Watch - Mystic Forest
G-Shock GA2100-4A Watch Red
Casio G-Shock GA2100-1A1
G-Shock GA2100NN Digital Glitch
Casio Watch G-Shock GA-2100-7AER - Casio

Price comparison

Last updated at 18/10/2025 13:05:47

Amazon.com.au

$171.99

Go to store


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Amazon

$173.99

available 3 days ago

Low stock


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Bogart's Jewellers

$126.00

available 1 day ago

Low stock

H S Johnson

$132.00

Go to store

GadgetiCloud

$135.00

available 1 day ago

Low stock

CreationWatches.com

$139.82

Go to store

Reebelo Australia

$142.10

Go to store

eBay - thewristoutlet

$149.39

available 9 days ago

Low stock


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afew-store.com

$150.87

available 9 days ago

Low stock

eBay - h.s.johnson

$152.15

Go to store


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See 18 more history offers

eBay - anything_store_japan

$207.53

available 17 days ago

Low stock


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eBay - b2b2_shop

$251.89

available 17 days ago

Low stock


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eBay - augoods

$168.99

available 17 days ago

Low stock


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eBay - 2nd_stage

$497.05

available 17 days ago

Low stock


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eBay - luckysloth_japan

$259.53

available 17 days ago

Low stock


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eBay - thewatchfactoryaustralia

$223.00

available 17 days ago

Low stock


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Vincent Watch

$227.00

available 17 days ago

Low stock

Windup Watch Shop

$219.05

available 17 days ago

Low stock

eBay - caswatchw5

$151.55

available 20 days ago

Low stock


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eBay - fashemco

$280.99

available 20 days ago

Low stock


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Cougar Watches and Clocks

$195.30

available 20 days ago

Low stock

MyDeal

$299.00

available 20 days ago

Low stock


shopback

Up to 3.6% Cashback

eBay - marken_20191111

$898.01

available 20 days ago

Low stock


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Wallace Bishop Outlet

$229.00

available 20 days ago

Low stock

Cash Converters

$119.00

Used

available about 1 month ago

Low stock

eBay - gude_puri_jp

$510.85

available about 2 months ago

Low stock


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Laybyland

$199.99

available 3 months ago

Low stock

eBay - akibashipping

$194.08

available 3 months ago

Low stock


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Price history

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​

Price history

​
​

Reviews

4 May 2024

originally posted on lazada.com.my

Casio does it again, the CasiOak is the bees knees.
1 September 2024
0reverso

originally posted on ebay.com

Found watch overly complicated to
15 August 2024
David H.

originally posted on g-shock.co.uk

Specification

Alternative nrGA-2100-2A
Diameter45.4 mm
Water resistant20 Bar (Dive)
WarrantyFull manufacturer warranty.
TIMEHours - Analogue hand

Price comparison

Updated about 19 hours ago
Amazon.com.au

$171.99

Amazon

$173.99

Low Stock
Bogart's Jewellers

$126.00

Low Stock
H S Johnson

$132.00

GadgetiCloud

$135.00

Low Stock

See 18 more history offers

eBay - anything_store_japan

$207.53

Low Stock
eBay - b2b2_shop

$251.89

Low Stock
eBay - augoods

$168.99

Low Stock
eBay - 2nd_stage

$497.05

Low Stock
eBay - luckysloth_japan

$259.53

Low Stock
eBay - thewatchfactoryaustralia

$223.00

Low Stock
Vincent Watch

$227.00

Low Stock
Windup Watch Shop

$219.05

Low Stock
eBay - caswatchw5

$151.55

Low Stock
eBay - fashemco

$280.99

Low Stock
Cougar Watches and Clocks

$195.30

Low Stock
MyDeal

$299.00

Low Stock

shopback

Up to 3.6% Cashback

eBay - marken_20191111

$898.01

Low Stock
Wallace Bishop Outlet

$229.00

Low Stock
Cash Converters

$119.00

Used
Low Stock
eBay - gude_puri_jp

$510.85

Low Stock
Laybyland

$199.99

Low Stock
eBay - akibashipping

$194.08

Low Stock

Price history

​
​

Price history

​
​

Reviews

4 May 2024
originally posted on lazada.com.my
Casio does it again, the CasiOak is the bees knees.
1 September 2024
0reverso
originally posted on ebay.com
Found watch overly complicated to
15 August 2024
David H.
originally posted on g-shock.co.uk
G Shock Watch
18 June 2024
Shraddha
originally posted on macys.com
Mixed opinion
13 July 2023
David B.
originally posted on g-shock.co.uk
Review of my G-Shock GA2100-1A
2 February 2023
Torsten D.
originally posted on watchdirect.com.au
The item came in new in box. Very nice watch. I didn't anticipate the watch face to be so dark or the hands to be as dark as they are. In a bright roo
20 May 2024
rb6-18
originally posted on ebay.com
The watch is definitely not new since the case was replaced at one point and put on upside down. Makes the entire stamped lettering on the watch incor
5 June 2024
timepiecemania
originally posted on ebay.com

Specification

Alternative nrGA-2100-2A
Diameter45.4 mm
Water resistant20 Bar (Dive)
WarrantyFull manufacturer warranty.
TIMEHours - Analogue hand