Patek Philippe Grand Complications 6104

Patek Philippe's Grand Complications 6104/12P-010 is a Celestial model housed in a 44 mm platinum case. The case measures 11.33 mm thick and carries a sapphire crystal, with a sapphire display back showing the self-winding calibre 240 LU CL C and its 22K gold mini-rotor. The blue dial charts the sky over the northern hemisphere, tracking the apparent movement of the stars along with the moon phase and its orbit, and the date is set by hand. A diamond is set at 6 o'clock on the case, and the watch is otherwise set with diamonds. The movement runs with a power reserve of 38 hours. A navy blue alligator leather strap closes with a platinum folding clasp, and the whole package stays water resistant to 30 metres.