The IWC Portofino Chronograph IW3910-26 features a 42mm red gold case and a grey dial. It is powered by the self-winding 75320 caliber.
Movement Type
Automatic Chronograph
Caliber
75320Jewels
25
Reserve
44
Frequency
28800
Hands
Small Seconds
Shape
Round
Material
Red Gold
Thickness
13.50 mm
Diameter
42.00 mm
Water Resistance
30.00 m
Dial Color
Grey
