@cyprianbeaze That's the Christiaan van der Klaauw Satellite du Monde. CvdK is an AHCI independent watchmaker in Joure, Netherlands and this was his signature complication, showing the position of the moon in orbit relative to the sun.
Tons more info here: https://grail-watch.com/christiaan-van-der-klaauw-satellite-du-monde/
These pages contain reference material about Dutch watchmaker Christiaan van der Klaauw and his signature complication, the Satellite du Monde. First shown at Baselworld in 1994, the Satellite du Monde incorporated a synodic calendar which shows the position of the sun and moon relative to points on the earth. This is similar to a moon […]
My #vanderklaauw is back on my wrist!