There would probably be more than a few epic fails involved with learning to tell time on the Sonar Watch. Designer Samuel Jerichow has designed a unique digital watch that tells time using one of three sonar displays.
Wearers can choose from a blue pulsating display, a red screen scanning display or from a traditional green screen-sweeper (think the sonar displays seen in war movies). Time is shown in dots detected by the sonar scan with hours being closest to the center, minutes in the middle and seconds on the outer reaches. The face has no numbers which could make telling the exact time difficult. Still, practice makes perfect, and telling the time using the traditional numbers and hands system is getting to be a little boring.
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