Casio to Release MR-G Inspired by the Polar Brinicle Phenomenon

TOKYO, May 27, 2026 — Casio Computer Co., Ltd. announced today the release of a new MR-G timepiece, adding to the flagship line of the G-SHOCK brand of shock-resistant watches. The new MRG-BF1000EB draws inspiration from the brinicle, an extraordinary natural phenomenon in which columns of ice form beneath the surface of polar seas.

The MR-G FROGMAN line of full-fledged shock-resistant diver’s watches brings together advanced technology and premium Japanese craftsmanship to deliver the highest level of performance that divers demand. These timepieces have gained a dedicated following around the world for their ability to withstand extreme conditions and the meticulous attention paid to materials, construction, and finishes in their design and production.

The new MRG-BF1000EB takes the brinicle, or brine icicle, as its design theme. These rare downward-growing columns of ice form naturally beneath the ocean surface in the freezing-cold seawater of polar regions.

The bezel, made with COBARION, an alloy approximately four times as hard as pure titanium, is meticulously finished in hand-cut facets under the supervision of master cutting and polishing artisan Kazuhito Komatsu. The intriguing spiral of the intricate facet-cut surfaces is highlighted with scratch-resistant blue arc ion plating (AIP), evoking the mysterious, swirling form of a brinicle.

The two front screws, which accentuate the distinctive asymmetry of the FROGMAN design, are each set with a lab-grown blue sapphire, in a 57-facet round brilliant cut that sparkles with luxury.

The iconic FROGMAN diving frog character is engraved on the case back, along with “MR-G 30TH” to commemorate the 30th anniversary of the MR-G line and a unique serial number certifying that the timepiece is one of a limited edition of only 800 pieces worldwide.

The timepiece comes with two interchangeable band options to complement all occasions: a Dura-Soft Band that resists discoloration, dirt, and aging, and a titanium bracelet with a solid, metallic gleam. The watch, interchangeable bracelet, and band mounting tool are presented in a specially designed box developed in collaboration with the Japanese high-end luggage brand Proteca, completing an exceptional package befitting a commemorative model this exclusive.

Guided by the Casio Purpose — “Through the power to put wonder at hand, bring new levels of joy to lives one by one” — Casio has brought unprecedented value to the world in its timepiece business. Looking ahead, the company will continue to go beyond the practical function of timekeeping in watches, offering diverse functions and distinctive designs that deliver new joys of watch-wearing and thrills of discovery.