IWC Portugieser

Portugieser Tourbillon Mystère Rétrograde

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  • Price
  • Reference IW504601
  • Case Material platinum
  • Bracelet/Strap black alligator leather strap
  • Dial Colour silver-plated
  • Jewels 44
  • Calibre 51900
  • Mechanical movement
  • Pellaton automatic winding
  • IWC-manufactured 51900 calibre
  • 7-day power reserve when fully wound
  • Power reserve display
  • Retrograde date display
  • Flying minute tourbillon
  • Glucydur®* beryllium alloy balance with high-precision adjustment cams on balance arms
  • 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 IW504602
  • Case Material 18-carat red gold
  • Bracelet/Strap dark brown alligator leather strap
  • Dial Colour ardoise
  • Jewels 44
  • Calibre 51900
  • Mechanical movement
  • Pellaton automatic winding
  • IWC-manufactured 51900 calibre
  • 7-day power reserve when fully wound
  • Power reserve display
  • Retrograde date display
  • Flying minute tourbillon
  • Glucydur®* beryllium alloy balance with high-precision adjustment cams on balance arms
  • 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.

Tourbillon

The tourbillon – or, as it literally translates, the “whirlwind” – has long been considered the ultimate achievement in mechanical watchmaking. Originally, this most exclusive of all watch complications was intended to offset the gravitational error inevitable in an oscillating system with a balance and spring by distributing the error evenly over a single plane. The solution: to put the balance, pallets and escape wheel in a tiny cage that would then rotate around its own axis once every minute. The construction of this mechanism represents an enormous challenge, and results in a filigree work of art consisting of 82 parts. In the Portugieser Tourbillon Mystère Rétrograde, the tourbillon at “12 o’clock” appears to come alive and is the focal point of the entire dial.

THE TOURBILLON: A FEAT OF WATCHMAKING GENIUS

For watch lovers, one of the most fascinating aspects of the Portugieser Tourbillon Mystère Rétrograde is the unusual presentation of the flying tourbillon, consisting of 82 parts, as a “12” that appears to come to life. After the 31st day of the month, the retrograde date display automatically jumps back to the 1st; in shorter months, the hand can be directly advanced using a rapid-advance system until it reverts to the 1st. The 7-day power reserve display indicates how much energy remains in the IWC-manufactured 51900 calibre. To mark the 75th anniversary of the Portugieser (Portuguese) watch family, IWC has given a timepiece swathed in mystery an additional touch of luxury. The arched-edge front glass endows the watch with a more classic, balanced appearance. The horns have also been ergonomically optimized to make the watch more comfortable to wear on a slimmer wrist. Another new feature is the exclusive alligator leather strap by Santoni. The reverse side of the watch with its see-through sapphire-glass back is also more attractive. The narrower and partly perforated rotor – now made of solid red gold – provides a generous view of the IWC-manufactured calibre, which also features blued screws. In the Portugieser Tourbillon Hand-Wound, the “whirlwind” – as the word tourbillon translates – turns at “9 o’clock” on the dial. The tourbillon rotates around its own axis once every 60 seconds to counteract the pull of gravity on any disequilibrium in the balance wheel that would adversely affect the watch’s rate and accuracy. The IWC-manufactured 98900-calibre movement with its intricately decorated nickel-silver three-quarter bridge can be admired through the transparent sapphire-glass back.

reference 5046

The Portugieser Tourbillon Mystère Rétrograde combines the magic of a floating tourbillon with the logic of a date hand that jumps back to its starting position and the power of a 7-day in-house calibre. In 2015, the grand dame of the Portugieser family will look even more attractive. The lugs have also been ergonomically modified to make the watch more comfortable to wear on slimmer wrists.

Highlights

  • Pellaton automatic winding
  • 7-day power reserve
  • Retrograde date display
  • Flying minute tourbillon
  • Diameter 44.2 mm

Price

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