The Casio G-Shock GM-2100 is a striking “metal-covered” iteration of the G-Shock 2100 family, sometimes nicknamed the “CasiOak” due to its octagonal bezel echoing luxury-watch aesthetics. But beneath the style lies substance: it upholds the core G-Shock values of toughness, utility, and daily wear reliability.
Design & Construction
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Bezel & Case: The standout feature is its forged stainless steel bezel, which is cut, polished (hairline finish on top surface; mirror polish on the sides) and then paired with a glass-fiber reinforced resin inner case. The dual structure helps maintain shock resistance while giving it a premium metal look.
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Profile & Dimensions: Measuring 49.3 × 44.4 × 11.8 mm (length × width × thickness), and weighing approximately 72 g, it remains relatively slim and light for a metal-accented G-Shock.
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Strap & Dial: The urethane/resin strap features a subtle square-dot textured molding for more visual interest. The dial generally uses vapor deposition finishes to achieve a detailed metallic effect.
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Colors & Variants: The base variant is silver (GM-2100-1A), but there are also IP-coated models in dark blue (GM-2100N), dark grey (GM-2100B), and more decorative or limited editions






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