The IWC Portugieser Perpetual Calendar 42 (ref. IW344205) refines one of the manufacture’s most complex complications into a sleeker, more wearable format. With its 42.4mm red gold case and deep blue dial, this version delivers the visual gravity collectors expect of the Portugieser line, balanced by modern proportions and a clean dial layout that enhances legibility.

Powered by IWC’s self-winding calibre 82650, this watch integrates a perpetual calendar, moon phase display, central seconds, and a full 60-hour power reserve. The simplified architecture, based on the robust 82000 series, allows for slimmer case dimensions while maintaining precision and ease of use. The perpetual calendar is mechanically programmed until 2100, offering long-term utility with minimal intervention. Water resistance is rated to 30m.

Introduced in 2020, the IW344205 combines technical mastery with measured elegance, appealing to those who appreciate the complexity of perpetual watchmaking in a case size suited to contemporary tastes.