A bi-colour moulding process is used for the band, which makes it possible to create a band that is black on the outside and red on the inside. The flashes of red from the inside of the band when putting on or taking off the watch is a bold statement of G-SHOCK identity. Base model is the big case GA-400 model that really stand out on the wrist. The brand colours of this new model capture the very essence of the G-SHOCK spirit of toughness.