Following Jack's lovely look at a massively complicated and beautifully executed grand complication from Jaeger-LeCoultre (if you missed this
link one, read it now), we figured it might be fun to keep you all on sidereal time with an in-depth look at another
link remarkable and thoroughly complicated watch. For this
link specific rotation of our planet, the watch in question is the Vacheron Constantin Les Cabinotiers Celestia Astronomical Grand Complication.