The Nooka Zub Zen is Nooka's second watch with a rubber band, and is similar to the Nooka Zub Zot. With a uniformly colored face and band, the watch creates an illusion of a single unit, with a seamless line between the two pieces. The Zen version of the Nooka watches features 2 vertical lines to represent the hours (1 to 6 and 7 to 12), 1 vertical line representing the minutes and 2 windows for the date and seconds.