The 40th anniversary Adventurer’s Stone shock-resistant models are inspired by the stones known to adventurers as useful compasses since the Middle Ages. The G-SHOCK brand concept of continuous innovation inspires people to take on new challenges, and the design of this line is based on the value that these stones have always had to people seeking adventure. The octagonal bezel and simple design of the popular GM-2100 takes on the look of cordierite, the stone associated with “showing the way.” Beautiful cordierite blue is reproduced with a blue ion plated metal bezel and band made with the Garal molding technique that mixes two different colours of resin.