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G-Shock 2500 Series Arrives In India

G-Shock 2500 Series Arrives In India

Casio India has introduced the G-Shock 2500 Series in the country, announcing it at a media event in New Delhi on 23 October 2026. The collection is built around two families: the resin-bodied GAC-2500 and the metal-clad GMC-2500. Both take their cue from the DW-5000C, the first G-Shock ever made, and reinterpret its square-faced toughness through a compact, fully analogue design.

This is an unusual G-Shock which has gotten the nickname ‘Casionaut’ because of its resemblance to the Patek Phillipe Nautilus. There is no digital display, no solar charging, and no Bluetooth. What you get instead is a simple, tough, good-looking time-and-date watch with a clever new date mechanism, and that framing matters when deciding whether it is the right G-Shock for you. Here is a detailed look at what the series offers, how the models differ, what is missing, and who should consider buying which one. 


Casio says the series is guided by a concept it calls "Depth in Shadow". In practice, that means sculpted surfaces, a dial with real dimensional layering and sharply defined hour indexes, all meant to create a play of light and shadow across the face. The dial is a moulded plastic part shaped so that it reads as three-dimensional rather than flat.

The silhouette keeps the octagonal front bezel that G-Shock fans know from the 5000 and 5600 families, but the contours are softer and more rounded than the original. The result has drawn comparisons with a certain luxury steel sports watch, and enthusiasts abroad have already nicknamed the series the 'Casionaut' for its resemblance to the Patek Philippe Nautilus, as mentioned earlier. Casio itself does not use that nickname, and it is worth stating plainly that this is a fan label, not an official one.

On size, the resin GAC-2500 measures 46.7 x 44.5 x 12.7 mm, while the metal-covered GMC-2500 and GMC-2500D measure 46.7 x 43.8 x 12.9 mm. Casio describes the proportions as compact, and by the brand's usual standards they are slim. Anyone who finds the typical G-SHOCK too bulky for a shirt cuff will want to try this on.

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