As can be seen from the distinctive octagonal bezel, the GM-B2100, a newcomer to the G-SHOCK full metal series, is based on the GA-2100, one of the most successful models of recent years.
The GA-2100 was born in 2019. Casio has been developing a new model targeting the younger generation for several years, and the result is the GA-2100, which inherits the philosophy of the original G-SHOCK, but with a smaller and more minimalist look. At the time, the mainstream G- SHOCK lineup was dominated by rugged designs. The design of the GA-2100, which pursued simplicity, was controversial even within the company, but when the time came for the GA-2100 to be unveiled, it was well received globally. As you know, it was a hit in the US as well, a hit that would go down in G- SHOCK history, and since then the lineup has rapidly expanded to include the GM-2100 metal-covered model and the GA-B2100 with smartphone link and Tough Solar.