Casio is launching a limited-edition G-Shock series to celebrate the 10th anniversary of the anime Haikyu!!. The collaboration features two GA-B2100 models, each themed around rival volleyball teams Karasuno and Nekoma, with designs inspired by key characters and team colors.

The Karasuno model comes in navy and orange, matching the team’s uniforms. The strap includes the number “10” from Hinata Shoyo’s jersey and the kanji “飛べ” (fly), highlighting the team’s high-energy spirit. The Nekoma model features a red and black design, with Kenma Kozume’s jersey number “5” and the word “繋げ” (connect) printed on the case. A checker pattern on the band reflects Nekoma’s nickname, “The Cats.”


Both watches include Bluetooth support, Tough Solar charging, and world time functions—standard features for the GA-B2100 series. While the hardware isn’t new, the anime-themed visual details are the focus of this release.

The watches come in custom packaging with team-specific artwork, slogans, and themed extras like character inserts and special straps. A launch event is scheduled for April 26 in Shanghai, and the watches are priced at ¥1,190 each (~$170). A collector’s box set featuring both watches is also available for ¥2,290 (~$312).
In other news, Casio has partnered with lifestyle brand MondaySleepingClub to release a green-themed version of its DW-5600 watch. Named the G-Shock DW-5610UU-3PRM, this model is currently available only in China. It features a green resin case, a bio-based strap with the phrase “Sleep Well, Stay Healthy,” and comes in specially designed packaging.
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