With its classic elegance and a discreet instrument design, the Portofino Chronograph in 42 millimetres attained the status of an icon.

Overview
Reference: IW391037
Dial Color: Silver plated
Case: Stainless steel
Strap: Blue alligator leather strap View all compatible straps
Diameter: 42 mm
Movement: Automatic, self-winding

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

Case
Strap width: 20 mm
Buckle width: 18 mm
Case: Stainless steel
Diameter: 42 mm
Height: 13.6 mm
Water Resistance: 3 Bar
Back case: Standard

Movement
Caliber: 75320
Movement type: Automatic, self-winding
Power Reserve: 44 hours
Frequency: 28800 Vph (4 Hz)
Components: 240
Jewels: 25