Patek Philippe Perpetual Calendar ref.5327G-001 from 2021

This watch is not only a work of art but also an engineering marvel, utilizing the same movement that has been present in Patek perpetuals for over 35 years: the caliber 240Q, featuring a micro-rotor, a favorite among many purists. In our modern technological era, the calendar serves as a connection to the natural world, aligning the rhythms of the Earth and the sky with those of human life. Naturally, a mechanical watch that tracks the progress of the calendar must incorporate these cosmic rhythms into gear patterns and proportions. These include the speed at which the Earth rotates on its axis, forming the day; the Moon's orbit around the Earth, giving us the month; and finally, the Earth's orbit around the Sun, marking a year. The highest order of such watches is the perpetual calendar, as it requires a high degree of automation, specifically, an annual reiteration. It must adhere to the dictates of the Gregorian calendar, where each leap year has 366 days instead of the usual 365,