Casio is expanding its Master of G line with three new G-Shock GravityMaster watches. Slated for a July 2026 release in Japan, the GWR-B3000 series introduces a metal bezel design and an updated movement system aimed at maintaining timekeeping reliability under physical stress.
GravityMaster GWR-B3000 Specifications
The lineup consists of three models: the standard GWR-B3000-1A, the blue ion-plated GWR-B3000A-2A, and the gray ion-plated GWR-B3000B-8A. All three share a large but relatively lightweight profile, measuring 56.7 by 47.3 by 14.1 mm and weighing 102 grams.
For the exterior, Casio is utilizing what it calls a dual hollow case structure. The outer case, constructed from stainless steel components formed via metal injection molding (MIM), surrounds a bio-based carbon inner case. This setup supports the center case at four distinct points and integrates resin buffers to absorb impacts. It is part of the company’s Triple G Resist specification, which is engineered to withstand standard drops, centrifugal force, and heavy vibration.
Internally, the watches are powered by Casio’s new Tough MVT.2 movement. The primary hardware update here is the addition of two sensor-based features: shock detection and magnetic field detection. If the watch sustains a heavy physical impact, the system automatically corrects the alignment of the analog hands. Similarly, if the internal sensor detects a strong magnetic field that could disrupt the mechanism, the hands temporarily pause their movement to prevent misalignment, then automatically snap back to the correct time once the interference clears.
Like most modern high-end G-Shocks, the GWR-B3000 series includes Bluetooth connectivity. By pairing the watch with the Casio Watches smartphone app, users can access automatic time adjustments and a flight log feature that records time and location data on a map. The watches also support Multiband 6 radio control as a fallback for time calibration.
The watches include a dark dial with microfabricated textures to reduce glare, an in-dial solar charging system (Tough Solar), and a sapphire crystal with an anti-reflective coating. The bands are made from a soft urethane that incorporates bio-based resins, continuing Casio’s recent shift toward using alternative materials in its watch construction.
Pricing and Availability
The standard GWR-B3000-1A will retail for ¥110,000 ($687), the GWR-B3000A-2A for ¥126,500 ($790), and the GWR-B3000B-8A for ¥137,500 ($859). Casio has not yet confirmed a release window or pricing for markets outside of Japan.
In related news, Casio has recently introduced two new all-black G-Steel watches that combine a slimmer profile with the brand’s signature rugged construction.
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