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40th anniversary of the G-SHOCK watch

TOKYO, March 15, 2023 /PRNewswire/ -- Casio Computer Co., Ltd. today announced the launch of the latest additions to its G-SHOCK Recrystallized series of shock-resistant watches, designed to celebrate the 40th anniversary of the G-SHOCK brand. The GMW-B5000PS and GMW-B5000PG models are even stronger thanks to a deep-hardening process*1 of the stainless steel.

*1 This process creates a hard layer by infusing gas into the surface of the steel, hardening the material itself rather than coating it to harden the exterior.

The GMW-B5000PS and GMW-B5000PG are based on the all-metal GMW-B5000D, faithfully reproducing the iconic shape of the first G-SHOCK, the DW-5000C. Both 40th Anniversary models use extremely hard stainless steel for exterior components such as the bezel and strap.

With this latest advancement in the continuing evolution of the G-SHOCK that began in 1983, Casio has developed a specific deep-layer hardening process for stainless steel, resulting in a material that is approximately three times harder than ordinary stainless steel. Recrystallization adds a design element, with stainless steel heat-treated and recrystallized to create crystalline patterns against a matte texture, giving the rough appearance of fine metal fragments scattered across the surface. Each individual component features a unique crystalline grain, offering subtle differences in pattern, color, and brilliance to each watch.

Casio also today announced the launch of the DW-5040PG, which features a dial engraved with the words "PROJECT TEAM 'Tough'", the name of the team that worked to develop the first G-SHOCK. For this reissue of the original G-SHOCK design, the deep-hardening process is applied to the caseback, buckle, loop, and other metal components. Biomass plastics are used on the bezel and strap.

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