Once upon a time we had to change watches every time we tired of staring at the same old numerals. Now though, thanks to nifty e-ink, we can change entire watch faces at the touch of a button.Phosphor's new timepiece incorporates a dose of the same high-contrast display technology used in e-book readers and the Motorola F3. So rather than just the one face, it gets eight.Being formed of e-ink they're all either black or white, but they do give the option of simple analogue or an additional digital display for dual-time shenanigans.You also get a choice of strap – cross-stitched leather or polyurethane (pictured). Now they're just spoiling us.