The IWC Portofino Lady Chronograph IW3730-05 is built with a 29.00mm stainless steel case, the 'MecaQuartz' caliber 631 chronograph movement, and a black dial.
Movement Type
Quartz
Caliber
631Jewels
25
Hands
Small Seconds
Shape
Round
Lug Distance
16.00 mm
Material
Stainless Steel
Glass
Sapphire
Thickness
7.90 mm
Diameter
29.00 mm
Water Resistance
30.00 m
Dial Color
Black
Material
Calf
