Astronomical watches: The whole of the night sky, strapped to your wrist

Grégory Gardinetti is an expert and historian in watchmaking and the Culture and Patrimony Manager at the Fondation de la Haute Horlogerie in Geneva. The views expressed are his own.

I love watchmaking in all its forms but astronomical complications are for me, the most magical. With astronomy you have the universe, the infinite, the giant -- whereas with watchmaking, you have the tiny, the minute.

But astronomical complications (additional watch features that display the movement of heavenly bodies) are the best of both worlds. They offer you the unique opportunity to have the universe on your wrist. It's impossible for me not to start dreaming when I see a moon phase on a dial.(CNN)