IWC Portugieser Constant-Force Tourbillon 150 Years IW590202

The Portugieser Constant-Force Tourbillon Edition “150 Years” stands out as one of the technical highlights in the jubilee collection. This model has a platinum case, a white dial with a lacquered finish, and blued hands. It is available in a limited edition of just 15 watches. For the first time, the new IWC-manufactured hand-wound 94805 calibre, with a power reserve of 96 hours, combines a constant-force tourbillon with a single moon phase display.

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$249,000.00

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The Portugieser Constant-Force Tourbillon Edition “150 Years” stands out as one of the technical highlights in the jubilee collection. This model has a platinum case, a white dial with a lacquered finish, and blued hands. It is available in a limited edition of just 15 watches. For the first time, the new IWC-manufactured hand-wound 94805 calibre, with a power reserve of 96 hours, combines a constant-force tourbillon with a single moon phase display. This moon phase display needs to be adjusted by only one day every 577.5 years. The patented constant-force mechanism disengages the escapement from the direct flow of power from the wheel train, and transmits completely even impulses to the escape wheel. In conjunction with the tourbillon, which compensates for the negative influences of gravity on the watch’s oscillating system, this achieves a very high level of precision.

CASE

  • Platinum case
  • Diameter 46.0 mm
  • Height 13.4 mm
  • See-through sapphire glass back
  • Water resistance 3 bar

MOVEMENT

  • 94805 Calibre
  • Manual-winding
  • Frequency 18000.0 vph (2.5 hz)
  • 41 Jewels
  • 96 hours Power Reserve
  • IWC-manufactured movement
  • Côtes de Genève

FEATURES

  • Tourbillon with integrated constant-force mechanism
  • Moon phase display
  • Power reserve display
  • Sapphire glass, arched-edge, antireflective coating on both sides

DIAL

  • White dial

STRAP

  • Black alligator leather strap by Santoni
Case

Color

Movement

Size

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