IWC Portugieser

Portugieser Perpetual Calendar

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  • Price
  • Reference IW503301
  • Case Material 18-carat white gold
  • Bracelet/Strap black alligator leather strap
  • Dial Colour ardoise
  • Jewels 54
  • Calibre 52610
  • Mechanical movement
  • Pellaton automatic winding
  • IWC-manufactured 52610 calibre
  • 7-day power reserve when fully wound
  • Power reserve display
  • Perpetual calendar with displays for the date, day, month, year in four digits and perpetual moon phase
  • Small hacking seconds
  • Glucydur®* beryllium alloy indexless balance with high-precision adjustment screws on balance rim
  • Breguet spring
  • Rotor made of 18-carat red gold
  • Sapphire glass, arched edge, antireflective coating on both sides
  • See-through sapphire-glass back
  • Water-resistant 3 bar
  • Case height 15.3 mm
  • Diameter 44.2 mm
  • Alligator leather strap by Santoni
  • *IWC Schaffhausen is not the owner of the Glucydur® trademark.

  • Price
  • Reference IW503302
  • Case Material 18-carat red gold
  • Bracelet/Strap dark brown alligator leather strap
  • Dial Colour silver-plated
  • Jewels 54
  • Calibre 52610
  • Mechanical movement
  • Pellaton automatic winding
  • IWC-manufactured 52610 calibre
  • 7-day power reserve when fully wound
  • Power reserve display
  • Perpetual calendar with displays for the date, day, month, year in four digits and perpetual moon phase
  • Small hacking seconds
  • Glucydur®* beryllium alloy indexless balance with high-precision adjustment screws on balance rim
  • Breguet spring
  • Rotor made of 18-carat red gold
  • Sapphire glass, arched edge, antireflective coating on both sides
  • See-through sapphire-glass back
  • Water-resistant 3 bar
  • Case height 15.3 mm
  • Diameter 44.2 mm
  • Alligator leather strap by Santoni
  • *IWC Schaffhausen is not the owner of the Glucydur® trademark.

Perpetual Calendar

Analogue date displays with hands have a long tradition in IWC watches featuring perpetual calendars. In the case of the Portugieser Perpetual Calendar, for instance, the date, day and month are to be found on three subdials and, thanks to the clear layout, are extremely easy to read.

The classic moon phase display with discs is usually found at “12 o’clock”. The Ingenieur Constant-Force Tourbillon is one exception and displays the double moon at approximately “1 o’clock”. The moon phase display used in the Portugieser Grande Complication is astonishingly accurate and deviates by just 0.002 per cent, or 1 day, in 122 years. The Portugieser Perpetual Calendar is even more precise. Larger moon phase wheels with a higher number of teeth reduce the deviation so drastically that a future inheritor of the watch would theoretically need to take it to a watchmaker to have the moon phase display adjusted by only 1 day in 577.5 years.

THE MOON EXERTS A NEW FORCE OF ATTRACTION

The full moon has been steeped in mystery and legend since the beginning of time. It is undisputed that the moon’s gravitational pull controls the tides, and thus exerts a real influence on the earth and our lives. On the moon phase display of the Portugieser Perpetual Calendar with a double moon or a single moon, the moon is just 5 millimetres in diameter. Nevertheless, the depiction of its orbit on the miniature stage diverges by just 1 day in 577.5 years from the actual phase of the moon. In the model with the double moon display, the moon phase and its mirror image show the state of the moon in both the northern and southern hemispheres. In the anniversary year of the Portugieser (Portuguese) family, both watches have been modified in terms of technology and design. For the first time ever, the double-moon model comes with the railway-track chapter ring typical of the Portugieser, while the designers have transformed the entire moon phase display into a star-studded night sky, so that the moon and stars appear to hover in infinite space. Both models are equipped with IWC-manufactured movements from the new IWC 52000-calibre family, featuring solid red gold rotors and blued screws. Each watch also has ergonomically optimized strap horns, an arched-edge front glass and a luxurious Santoni strap. Otherwise, the modern and elegant time machines leave virtually no wish unfulfilled: perpetual calendar, window showing the year in four digits, 7-day automatic movement with Pellaton winding and a power reserve display.

reference 5033

The perpetual calendar shows not only the lunar cycles but also the seconds, minutes, hours, date, day, month and year in four digits. Mechanically programmed, the calendar takes into account the different length of the months and even the leap years.

Highlights

  • Pellaton automatic winding
  • 7-day power reserve
  • Power reserve display
  • Perpetual calendar with moon phase display
  • Diameter 44.2 mm

Price

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