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Lot Essay
US$165,000-200,000
With Patek Philippe presentation box, outer packaging, Certificate of Origin and product literature.
Encompassing all the astronomical indications of its predecessors with the same configuration of the nocturnal sky with the movement of the stars, the position of the moon, and its progressing phases within a lunar cycle, the Patek Philippe Celestial, differs in that it allows the wearer to admire the progression of the stars while observing the mean solar time on the wrist.
In order to achieve this, Patek Philippe devised a highly sophisticated and complex system whereby stacked discs, each turning at different speeds and creating a spellbinding sensation of depth, are employed.
These discs are protected by sapphire crystal glass with an ellipse on the inside that frames the sky visible above Geneva at any time of the day. A lunar day, a lunar cycle, and a sidereal day are of differing durations, and each in turn differs from mean solar time (24 hours, as displayed by the hands of a watch). The discs representing all these durations are driven by the base calibre - a feat of horological micro-mechanics. For this invention, which was developed for the Star Calibre 2000, Patek Philippe was awarded Swiss Patent CH 688 171 B5.
With Patek Philippe presentation box, outer packaging, Certificate of Origin and product literature.
Encompassing all the astronomical indications of its predecessors with the same configuration of the nocturnal sky with the movement of the stars, the position of the moon, and its progressing phases within a lunar cycle, the Patek Philippe Celestial, differs in that it allows the wearer to admire the progression of the stars while observing the mean solar time on the wrist.
In order to achieve this, Patek Philippe devised a highly sophisticated and complex system whereby stacked discs, each turning at different speeds and creating a spellbinding sensation of depth, are employed.
These discs are protected by sapphire crystal glass with an ellipse on the inside that frames the sky visible above Geneva at any time of the day. A lunar day, a lunar cycle, and a sidereal day are of differing durations, and each in turn differs from mean solar time (24 hours, as displayed by the hands of a watch). The discs representing all these durations are driven by the base calibre - a feat of horological micro-mechanics. For this invention, which was developed for the Star Calibre 2000, Patek Philippe was awarded Swiss Patent CH 688 171 B5.