Ref. IW391031
The IWC Schaffhausen Portofino Chronograph IW391031 is a steel chronograph with a 42 mm case. It measures 13.6 mm thick, and the case is finished in stainless steel. The case carries a 30 metre water resistance rating. Inside is the self-winding calibre 79320, giving 44 hours of power reserve. The dial sits under a convex sapphire crystal with antireflective coating on both sides. Beyond the chronograph function, the watch shows the date and weekday alongside small seconds. It comes fitted with a black alligator leather strap measuring 20 mm at the lugs.
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TECHNICAL SPECIFICATIONS
GENERAL
Gender
Men
CASE
Diameter
42mm
Thickness
13.6mm
Lug Width
20mm
Case Material
Steel
Water Resistance
30m
Crystal
Sapphire Crystal
MOVEMENT
Movement Type
Automatic
Caliber
79320
Power Reserve
44h
Frequency
28,800 vph
Jewels
25 jewels
DIAL
Dial Color
Silver
BRACELET/STRAP
Bracelet/Strap
Alligator Skin
FEATURES & COMPLICATIONS
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QUICK FACTS
BRAND
IWC SchaffhausenREFERENCE
IW391031COLLECTION
PortofinoMOVEMENT
AutomaticCALIBER
79320CASE MATERIAL
SteelCRYSTAL
Sapphire CrystalWATER RESISTANCE
30m (rain/splash)GENDER
MenFOR WATCH DEALERS
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