PATEK PHILIPPE GRAND COMPLICATIONS 7140R-001 ROSE GOLD LADIES FIRST PERPETUAL CALENDAR
In order to accommodate months with 31, 30 and 28 days, and February 29 in leap years, a movement must have a mechanical “memory” of four years – or 1,461 days. This function requires a highly sophisticated mechanism, based on a complex system of levers and cams pivoting around their axes. This is a domain in which Patek Philippe has repeatedly leveraged its long-standing competence. Patek Philippe Grand Complications 7140R-001 White Opaline Dial Automatic Ladies Perpetual Calendar Watch.
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