Casio is marking the 30th anniversary of its premium MR-G line with a new flagship diver, the G-Shock Frogman MRG-BF1000EB-1A. Scheduled for release in June 2026, it is one of the most expensive G-Shock models the company has produced, carrying a retail price of ¥1,210,000 ($7,590) in Japan. Production is capped at 800 numbered units worldwide.
Design Details
The MRG-BF1000EB-1AJR relies heavily on specialized materials and manufacturing processes rather than standard mass production. The bezel is constructed from Cobarion, a cobalt-chrome alloy that is roughly four times harder than pure titanium. Instead of standard machine milling, the bezel’s facets are cut by hand by Japanese gemstone artisan Kazuhito Komatsu.
The metal is then treated with a blue arc ion plating (AIP) to give it a reflective finish. According to Casio, this aesthetic is meant to mimic a brinicle, an underwater ice formation found in polar regions. Additionally, the two front screws on the asymmetrical case are set with lab-grown, 57-facet brilliant-cut blue sapphires.
Underneath the exterior treatments, the watch maintains the hardware specifications expected from the Frogman line. The core case, case back, crown, and buttons are machined from Ti64 titanium alloy and treated with a titanium carbide (TiC) coating for abrasion resistance.
It features an ISO 200-meter water resistance rating, supported by Casio’s Clad Guard Structure, which integrates fluoro rubber buffers into the crown and pushers to protect the internal module from impacts. The screw-lock case back incorporates a blue vapor-deposited sapphire crystal and an engraving of the standard Frogman character.
On the technology side, the MRG-BF1000EB-1AJR is fully analog but uses three independent dual-coil motors to drive the hands. In dive mode, the hour and minute hands overlap to function as a single indicator for elapsed dive time.
The watch is powered by Casio’s Tough Solar charging system and keeps time via Multi-Band 6 radio control and Bluetooth. When paired with the Casio Watches smartphone app, users can automatically adjust the time, log dive data, and set tide graphs for approximately 3,300 global locations.
The package includes two interchangeable bands: a white Dura Soft fluoro rubber strap for diving use, and a deep-hardened pure titanium bracelet. The lugs feature a quick-release button mechanism for swapping between the two. The entire 800-piece run ships in a custom box co-developed with Japanese luggage manufacturer Proteca.
In related news, Casio recently launched a new carbon-and-metal G-Shock watch in both Japan and the U.S., while also unveiling the CRW001JB-9 ring watch in collaboration with J Balvin.
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