CASIO G-SHOCK GM-S5640GEM-7JR 40th Anniversary Limited Edition Downsized Adventurer’s Stone Series WatchProduct Overview The GM S5640GEM 7JR celebrates the 40th anniversary of G SHOCKs legendary toughness with a special limited edition that combines refined design and advanced durability. This downsized model features a unique metal bezel finished with IP painting and masking technology to express a brilliant, mineral like texture a tribute to the adventurers guiding stones concept. The skeleton band with hot stamping adds a distinct tactile feel,