Superflat master Takashi Murakami has created an eye-popping G-Shock “Frogman” watch with Casio. The cool collaboration features his trademark “Flower” emblem etched on the black metal casing and the strap features his signature on the front. The watch comes in a specially packaged and designed watch pillow also featuring his artwork. This collaboration will be limited to 300 and will be released on September 11th later this year. Check out a detailed look after the jump.