G-SHOCK x Marcelo Burlon GA100MRB-1A Watch by Casio. From G-SHOCK, the watch brand that is constantly setting new standards for timekeeping toughness, comes the limited edition collaborative model from G-SHOCK and Italian designer Marcelo Burlon. The GA100MRB-1A collaborative watch highlights iconographic elements from Patagonia featuring the coral snake, chosen because of their emblem of a land of tradition and wildness. Shock resistant. 200M water resistant. 1/1000-second stopwatch. Imported.