Pim Koeslang

With the arrival of master watchmaker Pim Koeslag in 2022, continuity is guaranteed for the future of Christiaan van der Klaauw Astronomical Watches. Besides developing the business, more technical developments are planned as well, including a first in-house movement.

Pim Koeslag was born in 1981 in Almelo, The Netherlands. At the age of 18, he attended watchmaking school in Amsterdam, where he won the prize for the best watchmaker
at school. This success gave him the opportunity to do an extensive training at
Patek Philippe in Geneva. After his training he started working at Frederique Constant
as Watchmaker and later as Technical Director. During this 20-year period at Frederique Constant Group, he developed no fewer than 30 calibres, among them a tourbillon, a minute repeater and a chronograph. Koeslag was also responsible for starting the luxury brand Ateliers deMonaco where he held the position of CEO.

After living and working in Geneva for over 20 years, it was time for a new phase in his life and the Koeslag family returned to the Netherlands. Right at the same time when Daniël and Maria Reintjes were looking for successor, to prepare for the next phase for Christiaan van der Klaauw Astronomical Watches. Pim Koeslag will guarantee continuity of the company in the future with many more astronomical masterpieces ahead!