New G-Shock releases for May 2026: Magma Mudmaster GWG-B1000MG-1A9, MTG-B4000 Black IP, GD-B300

In addition to the all-new G-LIDE GBX-H5600 series and Coca-Cola collaboration, the following G-Shock watches will be released in Japan in May 2026.

MUDMASTER GWG-B1000MG-1A9

G-SHOCK MUDMASTER GWG-B1000MG-1A9 MAGMA LIMITED EDITION

This limited edition Mudmaster GWG-B1000 model features magma-inspired orange hands and markers along with various gold-toned ion-plated stainless steel parts. The black resin band is mix-molded with lighter shades to resemble geological strata. Major features of the Japan-made GWG-B1000MG-1A9 include sapphire glass, Tough Solar, Multi-Band 6, Bluetooth Smartphone Link, Triple Sensor (altimeter-barometer, compass, thermometer), and mud-resistant buttons. The GWG-B1000MG-1A9JR is 143,000 yen in Japan. [Casio U.K. has the GWG-B1000MG-1A9 listed as coming soon for £800, which is £21 more than the limited GWG-B1000TLC-1A.]

G-SHOCK MUDMASTER GWG-B1000MG-1A9

G-SHOCK MUDMASTER GWG-B1000MG-1A9 BAND

G-SHOCK MUDMASTER GWG-B1000MG-1A9 BOX

MT-G MTG-B4000B-1A and MTG-B4000BD-1A

These are the first MTG-B4000 watches with a black ion-plating. They are made in Japan and feature Tough Solar power, Multi-Band 6, Bluetooth smartphone link, and Triple G Resist.

The MTG-B4000B-1A has sporty red accents on the dial and red stripes on the sides of the carbon fiber laminated frame. This model has a resin band and a price of 176,000 yen.

G-SHOCK MTG-B4000B-1A

G-SHOCK MTG-B4000B-1A ANGLE

G-SHOCK MTG-B4000B-1A BACK

The MTG-B4000BD-1A also has a monochrome style and a layered composite band made of stainless steel and resin. Previously, the silver and black MTG-B4000D-1A was the only MTG-B4000 watch with a composite band. The new MTG-B4000BD-1A has a price of 203,500 yen.

G-SHOCK MTG-B4000BD-1A

G-SHOCK MTG-B4000BD-1A ANGLE

G-SHOCK MTG-B4000BD-1A BACK

GMD-B300-2 and GMD-B300-7

G-SHOCK GMD-B300-2 and GMD-B300-7

The navy blue GMD-B300-2 and white GMD-B300-7 (17,600 yen each) are designed for smaller wrists and feature a step tracker and Bluetooth smartphone link. Other features of the GMD-B300 include dual time, stopwatch (1/100-second up to first hour), interval timers (up to 5 timers with 60-minutes max, with auto-repeat and auto-start), five alarms, and auto LED backlight (1.5 or 3 seconds).

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Disclosure: G-Central is an independent fansite supported by ads. We may earn a commission on sales from our links to external sites labeled with "affiliate link." Prices in articles are USD unless otherwise noted. Japanese yen prices include tax. Please follow your country's official G-Shock site for release updates.


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