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In celebration of the 75th Anniversary of the iconic Portugieser in 2015, IWC undertook a significant revamp of the collection, unveiling new models, fresh complications, and modernized designs. Among these updates, the 2015 Portugieser Perpetual Calendar underwent a striking transformation while retaining its classic essence. Notably, the arched glass stands out as a prominent alteration, complemented by subtle refinements to both the case and dial. Enhancing its performance, the automatic movement now boasts twin barrels and a 7-day power reserve with a pellaton winding system. Maintaining its heritage, the perpetual calendar feature, including the four-digit year display, harks back to the innovative Da Vinci of 1985 with its visionary Kurt Klaus-designed module. Presented as reference IW5034-04, this version showcases a luxurious red gold case paired with an elegant ardoise dial, elegantly secured on a sleek black Santoni alligator leather strap.
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