A $6.5 million watch was commissioned by a European billionaire for a one-of-a-kind timepiece made by Swiss watchmaker Vacheron Constantin that will make it the world’s most expensive new watch. The timepiece, which could apparently take years to complete, is expected to include the following:

Perpetual calendar and leap year
Star chart and celestial annual calendar
Tourbillon regulator
Sunrise and sunset indication
Perpetual time equation
Phases and age of the moon
Substantial power reserve
Multiple time zones and day-night indication
At least he got some special features designed into it. I have always wanted a watch with a star chart and celestial annual calendar. Lucky guy!