Casio G-Shock introduces five new colorway additions to its longstanding 8900 model. The latest version applies an updated design to the face as well as an added aluminum bezel. Boasting many of the expected functional tenants of its predecessors, the 8900A is 200-meter water and shock resistant, features a LED Super Illuminator backlight, flash alert, multi-city time, and world time. The resin and aluminum structure houses an impressively enduring five-year battery to ensure ongoing usability. The new front button 8900A will be available beginning November 2011.