Portugieser Hand-Wound Tourbillon

18 ct Armor Gold® case, Manual-winding, Diameter 42.4 mm, Black alligator leather strap by Santoni, Strap width 22.0 mm.

case

• 18 ct Armor Gold® case
• Diameter 42.4 mm
• Height 10.8 mm
• See-through sapphire glass back
• Water resistance 6 bar

Movement

• 81905 Calibre
• IWC-manufactured movement
• Manual-winding
• 84 hours Power Reserve
• Frequency 28800.0 vph (4.0 hz)
• 159 Components
• 20 Jewels
• Côtes de Genève, perlage

Features

• Hacking tourbillon mechanism
• Sapphire glass, convex, antireflective coating on both sides