Johannes Kepler $100k Astronomer's Wristwatch

Came across this unique watch on BoingBoing. Only 99 of these watches were made and are named after 17th century astronomer Johannes Kepler. He’s the dude who came up with the formulas for the Laws of Planetary Motion. Big stuff.

Johannes’ timepiece doesn’t come cheap though. It’s more than $100,000 per watch, but the design is magnificent. Check out how the watch works:

A flexible spring bends from the Tropic of Cancer to the Tropic of Capricorn to reveal the part of the Earth lit by the Sun and to indicate the time and place of sunrise and sunset. The moon rotates around the Earth.

The dragon hand indicates the eclipses of the sun and the moon. The perpetual calendar completes one turn each year.

Kepler $100k wristwatch [BoingBoing]