Christiaan van der Klaauw watches

Christiaan van der Klaauw is a Dutch maker of astronomical watches named after its founder, who trained at the instrument-making school in Leiden and set up on his own in 1974. He had moved to Joure, in Friesland, in 1967, and his first pieces were clocks with astronomical indications.

The CVDK Planetarium wristwatch, with a mechanical planetarium display, followed in 1999. Daniël and Maria Reintjes took over the company in 2009 and concentrated it on astronomical watches; they left in early 2025.