The FES Watch prototype is completely made out of electronic paper (including watch face and the wrist band), which changes its appearance based on user gestures. The prototype includes a handful of watch faces that could easily be changed by connecting to a PC or smartphone. It comes with 24 different user selectable patterns and estimated battery life is 60 days.
The Fes Watch has been developed by a spin-off division at Sony dubbed Fashion Entertainments, which has been experimenting with E-Ink displays in a variety of objects like glasses, shoes and even bow-ties. So e-paper as a fabric is not limited to watches, it also could be applied to an E-Ink-based bow-ties, hat accessories or paper holders.
The Japanese crowdfunding project Mukuake notes that the supporters will be able to pre-order the smartwatch and receive it after May 2015.