Casio G-SHOCK GM-2140GEM-2ADR Watch - 40th AnniversaryChart your own course with a G SHOCK 40th Anniversary Adventurers Stone limited edition timepiece. Join us in celebrating the G SHOCK 40th by choosing one of these spectacular metal clad watches, which are inspired by the stones adventurers have used to navigate since ancient times. The special colors of the minerals ancient seafarers used to find their way are reproduced in these watch designs with forging, ion plating, and masking processes, giving