The watch, called the FES (Fashion Entertainments) Watch, has 24 design patterns, according to a report on the Wall Street Journal. You can switch between the designs by using different gestures.
Sony apparently wants to make electronic paper a new kind of fabric.
Products may well be available as soon as May next year, the Journal said.
The fashion in the tech business is wearables, and a whole host of vendors is trying to hype up the concept – from Apple to Google.
There’s no indication as yet of how much your e-paper bow tie or e-paper watch will cost.