IWC Portofino Chronograph – IW391037

Stainless steel case, Automatic, self-winding, Diameter 42.0 mm, Blue alligator leather strap, Strap width 20.0 mm.

case

• Stainless steel case
• Diameter 42.0 mm
• Height 13.6 mm
• Water resistance 3 bar

Movement

• 75320 Calibre
• Automatic, self-winding
• 44 hours Power Reserve
• Frequency 28800.0 vph (4.0 hz)
• 240 Components
• 25 Jewels

Features

• Chronograph function with hours, minutes and seconds
• Day and date display
• Sapphire glass, convex, antireflective coating on both sides
• Small hacking seconds

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