Kepler $100k wristwatch

Ulysse Nardin's Tellurium J. Kepler watch rotates the Earth as it would be seen above the North Pole. The timepiece was named in honor of Johannes Kepler, a 17th century astronomer who formulated the Laws of Planetary Motion. Only 99 of the timepieces were made and they are priced at more than $100,000. From the Ulysse Nardin product page:
Keplerwatch 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.
Link (via Thoughts From The Sidelines)