The IWC Portofino Chronograph reference 3783, manufactured from 2007 to 2010, utilizes the self-winding caliber 79320 inside a sophisticated stainless steel or white gold frame. The IW3783-05 variant is distinguished by its rose gold case and black dial.
Movement Type
Automatic Chronograph
Caliber
79320Jewels
31
Reserve
44
Frequency
28800
Hands
Small Seconds
Shape
Round
Lug Distance
20.00 mm
Material
Rose Gold
Glass
Sapphire
Thickness
13.50 mm
Diameter
41.00 mm
Water Resistance
30.00 m
Dial Color
Black
