G-Shock MRG-B2000SG-1A ‘Shougeki-Maru: Gai’ 40th Anniversary LIMITED EDITION 700 units WORLDWIDE

Casio has added a new weapon to its G-SHOCK arsenal—the MRG-B2000SG, a limited edition watch inspired by the elegance and might of a samurai’s armor. This release embodies Casio’s “ultimate in toughness-driven watches” motto and aligns with the 40th anniversary of the G-SHOCK brand. Additionally, it acts as a tribute to centuries of samurai heritage, encapsulated in modern wristwear

The watch is limited to 700 units worldwide and is modeled after the Shougeki-Maru: Gai kabuto helmet, which was specially created for MR-G.

G-SHOCK’s MRG-B2000SG design finds its muse in the Shougeki-Maru: Gai kabuto helmet, crafted especially for this release. The bezel showcases a tiger, a symbol of strength, meticulously engraved by renowned metalsmith, Kobayashi Masao. His chiseling technique results in a unique rock-grain relief pattern on the tiger stripes, each bearing a distinct size and shape.

The white band of the watch, reminiscent of the white ito odoshi — a binding technique used in samurai armor — is more than an aesthetic choice, it signifies the unyielding determination of a samurai. Made from fluor rubber, the band offers a flexible fit, durability and stain resistance.



The titanium case undergoes a recrystallization process that gives it a unique texture and rugged look, and a deep-layer hardening process and dark silver arc ion plating are also applied. The bezel is hand-engraved by master metalsmith Masao Kobayashi with a tiger figure and rock-grain relief inspired by the maedate crest of the helmet.

The white Durasoft fluoro-rubber band is unusual for an MR-G model and represents the ito odoshi of the helmet, which are the overlaying plates of armor bounded together with white string. Other unique elements are the four front screw heads set with rubies, which are lab grown by Kyocera. A 40th Anniversary plate is affixed to the left side of the case.

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