Sony has developed a watch made from e-paper as part of an initiative to experiment with the use of the material for fashion products.
The Fes Watch has a minimalist, monochrome design but falls short of the features offered by smartwatches.
However, the battery of the e-paper watch could last far longer with an estimated 60 days of use.
The device has been described as “retro and cool” by gadget expert Stuart Miles from Pocket-lint.