DialSpec

IWC Schaffhausen Portofino Chronograph

Ref. IW3910-31current

What is the IWC Schaffhausen Portofino Chronograph?

The Portofino Chronograph takes its design cues from the 1960s, with elegantly sporty push-buttons and chronograph displays. The stainless-steel chronograph watch has a convex sapphire glass and appliqué Roman numerals on its silver-plated dial. It is powered by the tried and tested self-winding 75320 calibre with its 44-hour power reserve and comes with a black alligator leather strap. IWC provides a standard 2-year International Limited Warranty and extension of an additional 6-year coverage by registering your watch through 'My IWC' after your purchase, totaling to 8 years.

VerifiedUpdated 2026-03-18

Case Details

Diameter Mm
42 mmmedium
Thickness Mm
Unknownlow
Lug To Lug Mm
Unknownlow
Material
Stainless Steelmedium
Shape
Roundmedium
Bezel
Stainless Steelmedium
Crystal
Sapphiremedium
Caseback
Solidmedium
Water Resistance M
30 mmedium

Movement

Caliber
Unknownlow
Manufacturer
IWC Schaffhausenlow
Winding
Automaticmedium
Frequency Vph
Unknownlow
Power Reserve Hours
44 hoursmedium
Complications
Chronograph, Date, Day, Hours And Minutes, Secondsmedium
Base Caliber Notes
Unknownlow

Dial

Color
Silvermedium
Marker Style
Index, Roman Numeralsmedium

Strap & Bracelet

Type
Braceletmedium
Material
Alligatormedium
Clasp
Tang Bucklemedium

Key Specifications

Diameter42 mm mm
ThicknessUnknown mm
Water Resistance30 m m
MovementUnknown
Power Reserve44 hours hrs
MSRP$6,900
MSRP
$6,900

fixed

Buy for $6,900

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