New Casio G-Shock x Challenger DW-5600 collab watch unveiled with custom backlight and graphics

Casio has launched a new G-Shock collaboration watch in Japan, created in partnership with Challenger. The release uses the classic DW-5600 square case and is now available locally at a retail price of ¥39,000 (~$249), according to listings and brand posts. However, the watch sold out quickly after launch.

It comes with the familiar DW-5600 formula, with a resin case and strap, shock resistance, and 20-atmosphere water resistance. The overall color scheme is a muted navy blue, paired with a light display surround that keeps the dial legible without adding visual clutter. Standard digital functions such as timekeeping, alarms, stopwatch, and calendar are still unchanged.

What basically defines this model is the Challenger-specific detailing. The resin strap has schedule-style text, listing times for activities like "Up," "Chill," "Eat," and "Sleep." Challenger branding is also present on the dial, and the EL backlight reveals custom graphics when activated, which replaces the usual G-Shock animation.

For reference, Challenger is a Tokyo-based streetwear label founded by designer Daiki Suzuki, known for its roots in motorcycle culture, American casual wear, and graphic-heavy apparel. The brand has built a steady following through limited drops and collaborations, and it often keeps designs restrained rather than overtly flashy. That approach also carries over into this G-Shock release, which relies more on plain text and branding than bold colors.

Check out the Casio GWM5610-1 on Amazon.