To celebrate 30 years of G-Shocks advanced technology and style, they have released this updated version of one of their premium styles with all the functionality and durability that have made them such a popular choice. The GA-303B-1AER is constructed in black with blue accents and comes in a gold IP case back engraved with G-Shock's 30th Anniversary logo, which was created by world-renowned graphic artist, Eric Haze. For any G-Shock obsessive this is surely a must-have.