G-SHOCK built the GA-2100 into one of its most iconic current silhouettes, and C2H4 is about to reshape it around a single idea. The Los Angeles label has revealed C2H4 x G-SHOCK VOL.2, its second G-SHOCK collaboration, and it goes on sale July 17 at 9 AM PST.
Price: $245
Where to Buy: C2H4
Where last year’s GM-5600 edition set a mirror-finished metal frame against a translucent strap, this one pushes the transparency across the exterior, pairing a translucent resin bezel and strap with a silver dial finished through vapor deposition.
C2H4 frames the whole project with one line, “the future of design lies in the past,” and the watch is built to carry it. That backward glance is not nostalgia for its own sake. It is the label reading mid-century optimism as a template for how a modern G-SHOCK can look, and the GA-2100 is the canvas it chose to prove the point.
A Second Act Built on the GA-2100
VOL.2 follows the GM-5600 collaboration the two brands released last year, and it arrives in a busy stretch for GA-2100 team-ups, not long after the Coca-Cola GA-2100CC sold out on release. This time the base is the GA-2100, one of G-SHOCK’s most recognizable current models. The collaboration keeps the parts that make a G-SHOCK a G-SHOCK, namely the shock resistance and the 200-meter water resistance, then rebuilds the look on top of them.
You get the durability G-SHOCK buyers already expect, wrapped in a design that reads far more fashion-forward than a standard GA-2100.
Choosing the GA-2100 rather than another squared-off case is a deliberate step. It gives C2H4 a slimmer, more contemporary base to work against, and it keeps VOL.2 from feeling like a straight reissue of what came before. The bones stay pure G-SHOCK while the surface does all the talking.
The Design Language, Decoded
The headline change is the finish. The dial gets its silver finish through vapor deposition laid over a brushed metallic base, which gives the hands and hour markers a refined metallic look instead of a flat printed one.
The bezel and strap are molded from the same clear resin. The GM-5600 already used a translucent strap, but it framed the watch in mirror-finished metal, so making the bezel translucent too, and letting the whole exterior read as see-through resin, is what separates this edition most clearly from the one before it. It reads as a cleaner, more see-through take on the same retro-futurist brief.
Vapor deposition is the quiet flex here. Rather than printing color onto the dial, the process bonds a thin metallic layer to it, so the silver looks built into the surface instead of laid on top. Set against the translucent resin, the effect is meant to catch light the way polished metal does, without carrying the weight of a full metal build. Casio has leaned on the same vapor-deposited trick elsewhere in the line, including the matte G-SHOCK Luxe Black, so C2H4 is bending a familiar finish to a new look rather than inventing one.
A Nod to LAX and the Space Age
C2H4 anchors the collaboration in Space Age design, the mid-century aesthetic it describes through clean geometry, unusual materials, and a stripped-back palette.
The clearest reference lives on the case back, engraved with the LAX Theme Building, one of the most recognizable pieces of Space Age architecture. It is the same landmark C2H4 used on the GM-5600 edition, so VOL.2 lands as a continuation rather than a one-off. The brand ties the motif to an era that paired faith in technology with a taste for sleek, industrial forms.
Engraving that landmark on the case back keeps the reference where mostly the wearer sees it, which fits the understated way C2H4 handles the theme across the watch. It rewards a closer look rather than shouting the concept from the dial.
The Packaging Is Part of the Pitch
C2H4 is treating the box as part of the product. VOL.2 ships in limited-edition custom packaging that carries the same streamlined Space Age design language introduced with the GM-5600 collaboration.
The palette is metallic silver and futuristic blue, matched to the watch, and C2H4 is positioning the presentation as a collectible in its own right. For a limited drop tied this closely to a design story, that framing is the point.
Price and Where to Buy
C2H4 x G-SHOCK VOL.2 launches July 17 at 9 AM PST through C2H4. It carries a US retail price of $245.
This is a C2H4 exclusive rather than a general G-SHOCK release, so do not expect it on Amazon or in standard G-SHOCK retail channels.
Price: $245
Where to Buy: C2H4
Where Things Stand
If you already own the GM-5600 edition, VOL.2 is less a repeat and more a companion piece, same Space Age concept on a different silhouette with a different finish.
If you are new to the collaboration, the translucent GA-2100 is the more wearable, more understated entry point of the two. At $245, price is no longer the open question, and the drop itself is the last box to check on July 17.
Frequently Asked Questions
When does the C2H4 x G-SHOCK VOL.2 release?
It goes on sale July 17 at 9 AM PST through C2H4.
What G-SHOCK model is it based on?
The GA-2100, unlike VOL.1, which was built on the GM-5600.
Is it water resistant?
Yes. It keeps the GA-2100’s 200-meter water resistance along with G-SHOCK’s shock resistance.
What makes the design different?
A translucent resin bezel and strap, a silver dial finished with vapor deposition, and an LAX Theme Building engraving on the case back.
How much does it cost?
It retails for $245 in the US, launching July 17 through C2H4.
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(as of July 12, 2026 13:44 GMT -05:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
