The IWC Portugieser Perpetual Calendar Digital Date-Month Edition "75th Anniversary" is a remarkable feat of technology. Adding to the Portuguese watch family, it boasts a digital date and month display. This watch also includes a perpetual calendar, large date display, leap year indicator, and a chronograph with flyback capabilities. Powered by the 89801 calibre, it has a unique double-pawl winding mechanism and quick-action switch. Limited to just 75 pieces, the Red Gold/Blue colorway adds a touch of luxury to this digital perpetual calendar watch.