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45 Years of Music: Casio Launches G-Shock Tomoyasu Hotei Edition

Casio Reveals GM-5600HT26-1JR Watch Celebrating Tomoyasu Hotei Casio is expanding its G-Shock lineup in Japan with the GM-5600HT26-1JR, a digital watch created in collaboration with Japanese rock guitarist Tomoyasu Hotei to mark his 45th year in the music…

Casio G Shock Gm 5600ht26 1 Kolaborasi Japanese Rock Legend Tomoyasu Hotei

Casio Reveals GM-5600HT26-1JR Watch Celebrating Tomoyasu Hotei

Casio is expanding its G-Shock lineup in Japan with the GM-5600HT26-1JR, a digital watch created in collaboration with Japanese rock guitarist Tomoyasu Hotei to mark his 45th year in the music industry. topik.id reported that this release represents the fourth partnership between the watchmaker and the musician, applying Hotei’s signature visual style to a standard metal-bezel case. The watch builds on the classic square GM-5600 shape while incorporating distinct design elements from the artist’s career.

Stainless steel bezel features Hotei guitar rhythm pattern

The timepiece replaces traditional resin with a stainless steel bezel finished in a black ion-plated (IP) coating that creates a dark, matte aesthetic. According to gadget.qoo10.co.id, the resin band and watch face feature an all-over grey geometric GUITARHYTHM pattern belonging to Hotei. The case back carries an engraved GUITARHYTHM logo, while the band keeper displays a printed “45TH” anniversary marker. The watch measures 49.6 x 43.2 x 12.9 mm, weighs 80 grams, and uses mineral glass to protect the digital display.

For illumination, Casio includes a red LED Super Illuminator that provides sharp contrast against the monochrome exterior. The watch incorporates a flash alert system, meaning the red backlight blinks in sync with the multi-function alarm, hourly time signal, and countdown timer notifications. The entire package arrives in a special box wrapped in the same geometric GUITARHYTHM pattern.

Collector's edition retains standard digital tools and water resistance

Despite its status as a commemorative collector’s edition, the watch retains practical everyday functions. gadget.qoo10.co.id reported that the internal module delivers approximately five years of battery life alongside standard shock resistance and 200-meter water resistance. The device includes a 1/100-second stopwatch, a 24-hour countdown timer with auto-repeat, multi-function alarms, and a full automatic calendar.

Pricing and Availability in Japan

Casio scheduled the GM-5600HT26-1JR for a December release through standard retail channels in Japan, including physical G-Shock Stores and the Casio Online Store. topik.id noted that the company has not yet announced official pricing details for the limited-edition timepiece.

Casio releases limited-edition watch in Japan this December

When will the Casio G-Shock GM-5600HT26-1JR be available to buy?

Casio scheduled the limited-edition watch for release in Japan this coming December. Buyers can purchase the model through physical G-Shock retail stores and the official Casio Online Store.

What is the battery life of the Tomoyasu Hotei commemorative watch?

The digital timepiece operates on a battery that lasts for approximately five years. It maintains this power capacity while supporting 200-meter water resistance and standard G-Shock shock resistance.

How does the red LED backlight function beyond illumination?

The Super Illuminator backlight features a flash alert system that blinks in rhythm with the multi-function alarm, hourly time signals, and countdown timer alerts. This gives users a visual notification alongside the audible signals.

What milestone does this collaboration celebrate?

The watch marks Tomoyasu Hotei’s 45th year in the music industry. This project represents the fourth time Casio and the Japanese rock guitarist have partnered on a collaborative G-Shock model.

About the author: Anika Shah - Technology

MSc in Computer Science, senior reporter. Anika focuses on AI ethics, cybersecurity, and emerging hardware—frequently moderating panels at CES and Web Summit. “Anika Shah decodes tech breakthroughs and startup disruption shaping tomorrow’s digital landscape.”