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Perpetual Calendar Watches
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IWC Schaffhausen perpetual calendar watches combine day, date, month, moon phase and year features into one compact and functional design. The debut IWC Schaffhausen perpetual calendar was the Da Vinci Perpetual Calendar, developed in 1985. “Operation Eternity” required a recipe of meticulous tests, material research and Swiss know how to create these timepieces of exceptional reliability. IWC Perpetual Calendars now belong to the Maison’s Pilot’s watch collection and the Portugieser line, some of them enhanced by a digital day and date features or a double moon phase indicator.
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