Big Pilot’s Watch Constant-Force Tourbillon Edition Le Petit Prince IW590303

The Portugieser Constant-Force Tourbillon Edition “150 Years” stands out as one of the technical highlights in the jubilee collection. This model has a gold case, a blue dial with a lacquered finish, and rhodium-plated hands.






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The Big Pilot’s Watch Constant-Force Tourbillon Edition “Le Petit Prince”(ref. IW590303) is the first pilot's watch from IWC to feature a constant force tourbillon. It is available with a hard gold case and is limited to just 10 watches. This is the first time IWC has produced a watch with hard gold, a special new version of red gold. The microstructure of the alloy is modified in a sophisticated manufacturing process. Hard gold is therefore significantly harder and around 5 to 10 times more wear-resistant than conventional red gold. As a result, the material is perfectly suited to the large case and the crown of a Big Pilot’s Watch. The combination of the mesmerizing constant force tourbillon with the poetic design elements of this Le Petit Prince edition, make this timepiece exceptional. The red gold case creates a beautiful contrast to the blue dial and moon-phase complication.


Estimated release date: June 2019

Please note, product specifications are subject to change prior to release



  • 18 carat hard gold case
  • Diameter 46.2 mm
  • Height 13.5 mm
  • Sapphire, arched edge, anti-reflective coating on both sides
  • Water resistance 6 bar


  • 94805 Calibre
  • IWC-manufactured movement
  • Manual-winding
  • Power reserve display
  • Tourbillon with integrated constant-force mechanism
  • Moon phase display
  • See-through sapphire glass back
  • Screw-in crown
  • Glass secured against displacement by drops in air pressure
  • Limited to 10 watches


  • Blue dial
  • Gold-plated hands
  • Brown calf leather strap
  • Strap width 22 mm





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