The digital perpetual calendar is one of IWC’s most outstanding technological advances. With the new Portugieser Perpetual Calendar Digital Date-Month Edition “75th Anniversary”, the Portugieser watch family now includes a model featuring a digital display for the date and month. It is a dressy but casual and also retro-sporty watch and available in three versions.
This exclusive timepiece packs a wealth of IWC watchmaking expertise into its 45-milimetre case and the result is a combination of features and elements that IWC hasn’t tired to this day. Perpetual calendar, digital large date display, leap year display, chonograph with flyback function and the IWC-manufacutred 89801 calibre with its efficient double-wawl winding mechanism and quick-action switch. Every night, when the date display moves forward, the switch siphons off a little of the energy, stores it and then discarges it precisely at the end of the month or year when, in addition to the date and month disc, the leap year disc also needs to be advanced.
Rather than dials to indicate the calendar information, IWC designed the calibre to have discs which indicate the date, month, and leap year. The leap year indicator is only useful when initially setting the calendar information and its indicator is therefore hidden in the subsidiary seconds dial at 6 o’clock. The perpetual calendar can be set easily using the crown and will not require correction until 2100.
The bi-laterally symmetrical dial with easy-to-read windows flank the chronograph dial. The subdial contains two hands which register both the chronograph hours and minutes.
Overall the dial is very clean and uncluttered which makes it very legible – and great looking. This is definitely a wristwatch for lovers of a classic-looking watch.
On the occasion ot its relaunch to mark the 75th anniversary of the Portugieser family, the watch is fitted with an arched-edge front glass and Santoni alligator leather strap and has an attractive new calibre design.
The watch is limited to 25 watches in platinum and 75 in both 18-carat red gold with either a black or silver-plated dial.