In London, you can paint yourself blue and go to Primrose Hill and impress all the other druids with this stonehenge watch. Tell time, calculate solstices and play with your gnomon. Just position the watch using the accompanying high viscosity compass to tell local apparent time just as the builders of Stonehenge did thousands of years ago. For night-time use, there is an analogue watch built into the back. ::Think Geek via ::BoingBoing
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