Prolific, free magazine Frank151 collaborated with Casio G-Shock on a run of Frank G-Shock Brasil books, which is an offshoot of the Frank151 Brazil Edition. To celebrate the launch of the Brazilian magazine, the two parties got together to produce a limited edition DW5600 watch. By limited edition, we mean this is the only version in existence and is not available in any stores. The winner of this watch will be selected through the Frank151 Instagram account by using hashtag #GShockBrasil. Be quick, as the winner will be announced 5pm EST on Wednesday, March 20.