Casio's new compact G-Shock with rainbow vapor deposition announced for launch
Casio is dropping the GM-S5600XG-1 in June, and it's one of the more interesting G-Shocks they've put out in a while. It's a collaboration with XG — a seven-member international artist group that teeters between both J-POP and K-POP — and the design is meant to reflect that.
The watch is built on the 5600 frame, the same square silhouette that goes back to the original G-Shock, but this is the slimmer GM-S variant for smaller wrists. At 43.8 × 38.4 × 10.9 mm and 50g, it's significantly more compact than the standard 5600. The major highlight here is the glass, which goes through a rainbow vapor deposition process — and because it's applied individually, every single unit comes out with a slightly different gradation of color. Casio is marketing that as a feature rather than a flaw.
The rest of the design is as low-key as it gets: all-black bezel, black bio-based resin band, with the XG logo quietly stamped on the dial, band loop, and case back. There are multiple colorways/models in the lineup, including a new pink variant, but this black version with the iridescent display is the one that should get more attention, at least online.
Spec-wise it's straightforward G-Shock: 200-meter water resistance, shock resistance, 3-year battery life on a CR1616, Super Illuminator backlight, and a full auto-calendar running to 2099.
No price has been confirmed yet, but given the collab positioning and metal bezel construction, we can expect it to sit above the standard 5600 entry price. It goes on sale June 2026.
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