Casio Men's G-Shock Full Metal Origin Color GM-B2100SD-1CJF WatchProduct Highlights Introducing a full metal model adorned with the dial colors of the first G SHOCK model "DW 5000C" born in 1983. Featuring the brand colors of G SHOCK, symbolizing the passion to keep pushing boundaries red, representing passion, blue symbolizing high water resistance, and yellow representing shock resistance. The stainless steel bezel undergoes intricate forging, cutting, and polishing processes to achieve a three dimensional form,