IWC Portugieser

Portugieser Grande Complication

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  • Price
  • Reference IW377601
  • Case Material platinum
  • Bracelet/Strap black alligator leather strap
  • Dial Colour silver-plated
  • Jewels 75
  • Calibre 79091
  • Mechanical chronograph movement
  • Self-winding
  • 44-hour power reserve when fully wound
  • Perpetual calendar with displays for the date, day, month, year in four digits and perpetual moon phase
  • Stopwatch function with hours, minutes and seconds
  • Minute repeater for hours, quarters and minutes
  • Small hacking seconds
  • Sapphire glass, arched edge, antireflective coating on both sides
  • Special back engraving
  • Water-resistant 3 bar
  • Case height 16.5 mm
  • Diameter 45 mm
  • Limited edition of 250 watches each
  • Alligator leather strap by Santoni
  • Price
  • Reference IW377602
  • Case Material 18-carat red gold
  • Bracelet/Strap dark brown alligator leather strap
  • Dial Colour silver-plated
  • Jewels 75
  • Calibre 79091
  • Mechanical chronograph movement
  • Self-winding
  • 44-hour power reserve when fully wound
  • Perpetual calendar with displays for the date, day, month, year in four digits and perpetual moon phase
  • Stopwatch function with hours, minutes and seconds
  • Minute repeater for hours, quarters and minutes
  • Small hacking seconds
  • Sapphire glass, arched edge, antireflective coating on both sides
  • Special back engraving
  • Water-resistant 3 bar
  • Case height 16.5 mm
  • Diameter 45 mm
  • Limited edition of 250 watches each
  • Alligator leather strap by Santoni

Perpetual Calendar

The design of the perpetual calendar was a feat of watchmaking genius that finally paved the way for IWC’s entry into the world of Haute Horlogerie. A mechanical masterpiece, it takes into account all the complexities of the leap years; in other words, it recognises all the years that can be divided, without remainder, by four (e. g. 2012), as well as the centuries that can be divided, likewise without remainder, by 400 (e. g. 2400). These leap years all have a 29th day in February. Years at the turn of the century that leave a remainder when divided by 400 – the next ones are 2100, 2200 and 2300 – are not leap years. In cases like these, calendars with an analogue display will need to be advanced by 1 day on 1 March by a watchmaker. Calendars with a digital display can be adjusted by the owner. The perpetual calendar’s century slide with an analogue display turns each new century into a major event. The current century slide bears the numbers 20, 21 and 22 and will thus come to the end of its service life on 31 December 2299; but even now, IWC supplies the century slide bearing the figures 22, 23 and 24 for the years 2200 to 2499.

Minute Repeater

It took 50,000 hours to develop the highly complex minute repeater strike train for the Grande Complication and the Portugieser Minute Repeater. It is operated by an eye-catching repeating slide on the left-hand side of the case and chimes out the time in crystal-clear tones: the hours on the lower-pitched of the two gongs, followed by a double strike on both gongs for the quarters and finally a single strike on the higher-pitched gong for the minutes. Every gong is individually handmade and carefully tuned for pitch and tonal purity. The all-or-nothing piece, as it is known, ensures that the mechanism will never chime out an incomplete – and thus incorrect – series of acoustic tones even if the repeating slide is released too early.

ONE OF THE MOST SOPHISTICATED WATCHES IN THE WORLD

The Portugieser Grande Complication brings together many of watchmaking’s most significant achievements. One of these is the perpetual calendar, which is mechanically programmed until 2499 and requires just three adjustments in what would normally be leap years (2100, 2200 and 2300) but are not. Further complications include the perpetual moon phase display, chronograph and minute repeater. When activated by the repeating slide, the latter chimes out the precise time in harmonious tones. A total of 20 functions are made possible by the interplay of 659 individual mechanical parts. Despite its complex construction and numerous controls, the case is water-resistant to 3 bar. Several design modifications further enhance the value of the model in the new collection. The silver-plated dial, for example, no longer bears an engraving of the globe showing longitude and latitude. Because of this, it looks clearer and more composed. The engraving on the back of the case now takes the form of a compass rose. Keeping the watch firmly attached to its Santoni alligator leather strap are newly designed ergonomic strap horns. The strap of the 18-carat red gold version is stitched with red gold thread while the strap of the exclusive platinum model is finished with a platinum thread. Only 250 of each model will be produced.

reference 3776

The Portugieser Grande Complication has no fewer than 20 displays and functions. Apart from the time and chronograph functions, it includes a perpetual calendar with displays for the date, day, month, year, decade and century as well as a perpetual moon phase display. Rounding it all off is mechanical watchmaking’s supreme achievement: the minute repeater.

Highlights

  • Mechanical chronograph movement
  • Self-winding
  • 44-hour power reserve
  • Perpetual calendar
  • Minute repeater
  • Diameter 45 mm

Price

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