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  • Astronomical indications
  • Tourbillon

Portugieser Constant-Force Tourbillon Edition "150 Years"

IWC 2018

ref. IW590202
Men's

The watches that IWC Schaffhausen has created in celebration of its 150th anniversary have in common a blue or white lacquered dial. Five of these limited editions have been added to the brand's oldest collection, the Portugieser. The mechanical highlight is this constant-force Tourbillon, the first from IWC. Equipped with a new, manual-wind manufacture movement, its moonphase display is so precise it will need adjusting by just one day after 577.5 years. The patented constant-force mechanism transfers a perfectly regular flow of energy to the escapement throughout the 96 hours of power reserve.

Function

  • Function
    Hours, Minutes, Small seconds

Complications

  • Regulating mechanism
    Constant-force escapement
    Tourbillon
  • Display
    Power-reserve indicator
  • Astronomical indications
    Moon phases

Movement

  • Movement name
    94805
  • Energy supply
    Manual-winding
  • N° of jewels
    41
  • Power reserve
    96 hours
  • Vibrations
    18000
  • Form
    Round
  • Diameter
    mm

Case

  • Form
    Round
  • Material
    Platinum
  • Height/thickness
    13.50 mm
  • Diameter
    46.00 mm
  • Back
    Sapphire
  • Water-resistance
    30 m

Dial

  • Colour
    White

Strap

  • Material
    Alligator
  • Colour
    Black

Characteristics

  • Limited/numbered edition
    15