IWC Portugieser Hand-Wound Tourbillon
IW545801
Reference IW545801 brings a flying minute tourbillon to the Portugieser’s timeless modern design, placing the complication prominently at 6 o’clock. The 42.4 mm case in 18-carat Armor Gold® surrounds a silver-plated dial and is paired with a black Santoni alligator-leather strap, balancing warm precious metal with restrained contrast. Its hand-wound IWC-manufactured calibre 81905 stores 84 hours of power and reveals its Côtes de Genève and perlage finishing through the sapphire-glass case back.
Reference: IW545801
Movement: Manual winding, calibre 81905
Power reserve: 84 hours
Case: 18 ct Armor Gold®, 42.4 mm
Dial: Silver plated
Strap/bracelet: Black alligator leather strap by Santoni
Features: Manual winding
Water resistance: 60 m / 6 ATM
Year: 2026 — Full set
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