Choose timeless versatility with the iconic octagonal G-SHOCK look, now in tasteful GA-2100 colours. Made of carbon fibre-reinforced fine resin for a thinner, lighter watchcase that is as tough as ever. The simple design and rugged construction feature a black dial for a cool, polished look. Choose from three classic colour schemes — navy blue, white, and beige. These new models embody these efforts in an attractively thin configuration. These new models inherit the octagon form that was also employed for the original DW-5000C. Analog-digital timekeeping comes packed into a no-nonsense simple design without sacrificing G-SHOCK level toughness. High-strength resin material, which is reinforced with carbon fibres, makes it possible to create a case that is a mere 11.8 mm thin, which is the thinnest among G-SHOCK combination models. A new carbon core guard structure protects the module by enclosing it in a carbon case. The case is made of fine resin embedded with carbon fibers for outstanding strength and crack resistance.
Choose timeless versatility with the iconic octagonal G-SHOCK look, now in tasteful GA-2100 colours. Made of carbon fibre-reinforced fine resin for a thinner, lighter watchcase that is as tough as ever. The simple design and rugged construction feature a black dial for a cool, polished look. Choose from three classic colour schemes — navy blue, white, and beige. These new models embody these efforts in an attractively thin configuration. These new models inherit the octagon form that was also employed for the original DW-5000C. Analog-digital timekeeping comes packed into a no-nonsense simple design without sacrificing G-SHOCK level toughness. High-strength resin material, which is reinforced with carbon fibres, makes it possible to create a case that is a mere 11.8 mm thin, which is the thinnest among G-SHOCK combination models. A new carbon core guard structure protects the module by enclosing it in a carbon case. The case is made of fine resin embedded with carbon fibers for outstanding strength and crack resistance.
in 8 offers
last seen 13 May 2026
The lowest price we last saw for G-Shock Casioak GA2100-5A was $189.00 at Shiels, compared across 8 retailers (last seen 13 May 2026). Prices may have changed since.
The all-time low we recorded was $143.87 on 19 Mar 2026.
Prices last updated 13 May 2026.
G-Shock Casioak GA2100-5A
Choose timeless versatility with the iconic octagonal G-SHOCK look, now in tasteful GA-2100 colours. Made of carbon fibre-reinforced fine resin for a thinner, lighter watchcase that is as tough as ever. The simple design and rugged construction feature a black dial for a cool, polished look. Choose from three classic colour schemes — navy blue, white, and beige. These new models embody these efforts in an attractively thin configuration. These new models inherit the octagon form that was also employed for the original DW-5000C. Analog-digital timekeeping comes packed into a no-nonsense simple design without sacrificing G-SHOCK level toughness. High-strength resin material, which is reinforced with carbon fibres, makes it possible to create a case that is a mere 11.8 mm thin, which is the thinnest among G-SHOCK combination models. A new carbon core guard structure protects the module by enclosing it in a carbon case. The case is made of fine resin embedded with carbon fibers for outstanding strength and crack resistance.
Choose timeless versatility with the iconic octagonal G-SHOCK look, now in tasteful GA-2100 colours. Made of carbon fibre-reinforced fine resin for a thinner, lighter watchcase that is as tough as ever. The simple design and rugged construction feature a black dial for a cool, polished look. Choose from three classic colour schemes — navy blue, white, and beige. These new models embody these efforts in an attractively thin configuration. These new models inherit the octagon form that was also employed for the original DW-5000C. Analog-digital timekeeping comes packed into a no-nonsense simple design without sacrificing G-SHOCK level toughness. High-strength resin material, which is reinforced with carbon fibres, makes it possible to create a case that is a mere 11.8 mm thin, which is the thinnest among G-SHOCK combination models. A new carbon core guard structure protects the module by enclosing it in a carbon case. The case is made of fine resin embedded with carbon fibers for outstanding strength and crack resistance.
Last updated at 13/05/2026 19:47:27
G-Shock GA2100-5A Carbon Core Guard 'CasiOak' - Shiels Jewellers
Free delivery
G-Shock GA2100-5A Carbon Core Guard 'CasiOak' - Grahams Jewellers
Free delivery between 18–21 May
G-Shock GA2100-5A Carbon Core Guard 'CasiOak'
Free delivery
G-Shock GA2100-5A Carbon Core Guard 'CasiOak'
Free delivery
G-Shock Carbon Core Watch GA-2100-5A
30-day returns
Casio G-Shock Carbon Core Guard Watch GA-2100-5A, GA2100
Free delivery
Casio G-Shock Carbon Core Guard Watch GA-2100-5A, GA2100
Free delivery
CASIO G-Shock Analog-Digital 'Brown' GA-2100-5AJF US Free
Delivery $65
originally posted on lazada.com.my
Basically satisfied with this watch, functional very good but a bit disappointed with the strap. It seems like a kids watch. Whatever it is still a genuine product. Received as per order and advertisement with G-Shock canvas bag as gift. Trusted seller. Superb fast delivery. Thank you very much seller.
originally posted on g-shock.co.uk
A G shock that shocked! I’m a good way, if I had hair it would be standing on end through sheer excitement and not because of a static shock from the metal case.The illumination shine and creates an iridescent shimmer from the whole watch face.The strap is of excellent quality and fits perfect on my 8” wrist.This is my new go to day watch ⌚️
originally posted on ebay.com
I have never owned a G-Shock before but own two previous Casio wristwatches, both old and almost vintage. So my purchase of another Casio had to come with a good reason and I am delighted to say that the Casio G-Shock "casiOak" does not disappoint. Everything about this watch states it's intended purpose. Tough, accurate, good looking, comfortable and manages to display various functions in a readable fashion. My particular choice has left me with a dark dial, which can be trifle annoying at certain times but these are few and infrequent and this is more than made up for by the impressive and stylish overall appearance.
| Parts Number | GA-2100-5AJF , GA 2100 5AJF |
| Colorway | Creamy |
| Thickness | Regular Thickness |
| Applicable Season | All Season |
G-Shock GA2100-5A Carbon Core Guard 'CasiOak' - Shiels Jewellers
Free delivery
G-Shock GA2100-5A Carbon Core Guard 'CasiOak' - Grahams Jewellers
Free delivery between 18–21 May
G-Shock GA2100-5A Carbon Core Guard 'CasiOak'
Free delivery
G-Shock GA2100-5A Carbon Core Guard 'CasiOak'
Free delivery
G-Shock Carbon Core Watch GA-2100-5A
30-day returns
Basically satisfied with this watch, functional very good but a bit disappointed with the strap. It seems like a kids watch. Whatever it is still a genuine product. Received as per order and advertisement with G-Shock canvas bag as gift. Trusted seller. Superb fast delivery. Thank you very much seller.
A G shock that shocked! I’m a good way, if I had hair it would be standing on end through sheer excitement and not because of a static shock from the metal case.The illumination shine and creates an iridescent shimmer from the whole watch face.The strap is of excellent quality and fits perfect on my 8” wrist.This is my new go to day watch ⌚️
I have never owned a G-Shock before but own two previous Casio wristwatches, both old and almost vintage. So my purchase of another Casio had to come with a good reason and I am delighted to say that the Casio G-Shock "casiOak" does not disappoint. Everything about this watch states it's intended purpose. Tough, accurate, good looking, comfortable and manages to display various functions in a readable fashion. My particular choice has left me with a dark dial, which can be trifle annoying at certain times but these are few and infrequent and this is more than made up for by the impressive and stylish overall appearance.
GM-2100-1AER in silver. A sophisticated take on cassioak series that looks at home in more places than one.Bought for work to handle accidental scrapes during manual handling and to look good doing so; ended up wearing the watch outside of work as my daily with the exception of dressier occasions.Has a nice weight to it despite having a slightly slimmer build than the resin models so feels good.Looks good in proportion to my 18cm/7inch wrist, with a dial that’s easy to read. The back light feature is quite underwhelming and doesn’t last for very long but I can’t see myself needing that very often.The watch comes well packaged with plenty of padding and the box is aesthetically pleasing. The box is not a display piece, however I did not expect that of it and my ... MoreGM-2100-1AER in silver. A sophisticated take on cassioak series that looks at home in more places than one.Bought for work to handle accidental scrapes during manual handling and to look good doing so; ended up wearing the watch outside of work as my daily with the exception of dressier occasions.Has a nice weight to it despite having a slightly slimmer build than the resin models so feels good.Looks good in proportion to my 18cm/7inch wrist, with a dial that’s easy to read. The back light feature is quite underwhelming and doesn’t last for very long but I can’t see myself needing that very often.The watch comes well packaged with plenty of padding and the box is aesthetically pleasing. The box is not a display piece, however I did not expect that of it and my main focus is the watch.
Great watch.Brilliant face with the brushed metal. Illumination on the hands is high quality - better than a watches I have that currently at £2500-3000.Superb for an everyday watch. Fits well casually, but can also dress it up a little - obvious not dress watch level. But to a degree. And it’s a gshock so will stand the test of time and will last for a long time.Also fits well on the wrist!If I could change one thing is that the buffed metal is to shiny. When brand new it does look a cheap coated watch. After it’s worn for a while hopefully this fade!
Love my watch, I always like the vintage one but I would say this is one of the best casio watch I have.Love the design, colour, style and of course durability of the watch. It got all the essential features I need and it's so easy to set up. Quite big on my wrist but not an issue for me. Overall I am a very satisfied customer.I wanted to buy the blue version to add to my collection but it’s long been out of stock. Hope Casio is reading this.Highly recommended.
The watch is a g shock, and as a result, Its absolute quality through and through. The pictures if this particular piece (as is often the case) really dont di it justice. No fault of the photographer, its a tricky piece to snap. It looks and wears like a watch twice its price.If you're half considering buying it, buy it. You will not be disappointed.Packaged perfectly and arrived promptly.5 stars.
The look is great and I get lots of compliments on it, however the quality for a G-Shock is really subpar.After one day I notices scuffs around the face on the silver and even noticeable scratches on the glass. I bought a G-Sock because of its reputation on durability.I was quite disappointing but due to extensive delays in receiving my order I left it and never complained or asked for an exchange (despite noticing all the defects within a couple of days).
| Parts Number | GA-2100-5AJF , GA 2100 5AJF |
| Colorway | Creamy |
| Thickness | Regular Thickness |
| Applicable Season | All Season |
