IWC

Portugieser Perpetual Calendar 18K Gold 44mm (c. 2016)

Ref. IW5033-02

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The Portugieser Perpetual Calendar sits at the top of IWC's dress watch hierarchy, combining the collection's signature oversized, minute-track dial with one of horology's most demanding complications: a perpetual calendar that automatically accounts for months of varying length, including leap years, without requiring correction until the year 2100. At 44mm, this circa-2016 example wears with substantial presence, its 18K gold case amplifying the formality of the complication within. The dial faithfully follows the classic Portugieser Perpetual layout, with a moon phase display, a four-digit year indicator, and day/date/month subdials laid out with IWC's characteristic clarity, all powered by the manufacture's automatic Caliber 51614 and its impressive seven-day power reserve — a rarity among perpetual calendars, most of which require far more frequent winding attention. This is a watch built for collectors who want serious horological complexity delivered with restraint rather than ostentation. Between the seven-day power reserve, the perpetual calendar mechanism, and the 18K gold case, it represents IWC's manufacture capabilities at their most complete, wrapped in a dial design the brand has refined for generations.