Untrod Sol space age solar watch

It's not a vintage design, this is a modern piece with one eye on the past - the Untrod Sol solar watch.

The work of designer Shin Azumi, it's your average digital watch, albeit with a 70s-style space age twist. But there's that second window, exposing a solar cell that keeps the juice topped up, just as long as you live somewhere that sees the sun,

Available online at Charles and Marie, it sells for 109 Euros. Note that a number of other colours are also available.

Charles and Marie website