IWC Portofino Chronograph Day Date 42mm
Reference: IW3910-02
The IWC Portofino Chronograph Day Date 42mm in black is a chronograph watch released under the Portofino collection. In terms of construction this version features a 42mm case and sapphire crystal. The movement is an automatic IWC reference 79230 based on the ETA 7750 movement. It has a power reserve of 44 hours and beats at a frequency of 21 600 beats per hour.
Essentials
Collection
Year launched
2011
Discontinued
2015
Watch style
Crystal
Sapphire
Water resistance
30 m
Visuals
Case shape
Round
Case diameter
42 mm
Case height
13.5 mm
Colors dial
Black
Movement
Caliber
IWC 79230
Base caliber
ETA 7750
Type
Automatic
Power reserve
44 hours
Frequency
21 600 bph /
3 Hz
No. of jewels
29
Complications
Storage
Books
Tools
Clocks
Straps
Misc.Brand - IWC
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