IWC Portofino Chronograph

Ref.: IW391020 ∙ IW391021

FEATURES

• Mechanical chronograph movement
• Date and day display
• Stopwatch function with hours, minutes  and seconds
• Small hacking seconds
• Special back engraving   

MOVEMENT

• Calibre  75320
• Frequency 28,800 A/h / 4 Hz
• Jewels  25
• Power reserve  44 h
• Winding  automatic   

WATCH

• Materials  
  • Ref. IW391020: 18-carat red gold case, silver-plated dial,  dark brown alligator leather strap, pin buckle in 18-carat red gold
  • Ref. IW391021: 18-carat red gold case, slate-coloured dial,  dark brown alligator leather strap, pin buckle in 18-carat red gold
• Glass sapphire, convex, antireflective coating on both sides
• Water-resistant 3 bar
• Diameter  42 mm
• Case height 13.5 mm