Casio will kick off the 40th anniversary of G-Shock next year with a range of redesigned classic watches that know how to rock.

The Adventurer’s Stone collection certainly has the minerals, as each model sports a design based on the stones used as guideposts by adventurers since the Middle Ages.

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As well as the look and pattern on each watch’s bezel, processing techniques used in manufacture adds a stoney, rough texture for a more tactile experience.

There are six variants on offer, taken from some ofCasio’s most-loved G-Shock ranges.

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The GM-5640GEM x Sunstone is one of the two digital only watches, with a bright, rainbow-coloured bezel that shines depending on the viewing angle.

It costs £280 and comes with all the standard features of the 5640 line.

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The GM-S5640GEM x Calcite model costs £250 and, like the Sunstone version above, has a rainbow effect.

The GM-2140GEM x Cordierite has a blue face and is matched with a mixed-colour moulded resin band. It’s an analogue and digital model with a hand-shift feature and world time function.

It’s priced at £270, while the GM-S2140GEM x Calcite is a touch cheaper, at £230. It has similar features but a lighter design.

The GM-114GEM x Calcite edition is £290 and is forged and ion plated with a gold and black finish. Another analogue and digital model, it also has ISO 764-compliant magnetic resistance.

And finally, the GM-S114GEM x Calcite will set you back £230. It’s signature is a purple and grey finish, with hot stamping giving it an uneven texture.

The entire G-Shock Adventurer’s Stone collection will be available in January 2023. US pricing is yet to be revealed.