If you want one of these ‘Portuguese Siderale Scafus’ pieces from IWC, it will take over a year to complete. Yes, the painfully rare release of the latest watch, from the Swiss house was a decade in the making.
Each one is hand crafted to the highest standards, with solar time, sidereal time, a power reserve, a tourbillon that doubles as a seconds dial and even a polarized crystal. The back of the case reveals a detailed celestial map. Bespoke only and available through IWC.