Stainless steel case with a stainless steel milanaise mesh bracelet.
Fixed stainless steel bezel.
Black dial with silver-tone leaf-style hands and index hour markers.
Minute scale around the inner rim.
Dial Type: Analog.
Day of the week and date display at the 3 o'clock position.
Chronograph - three sub-dials displaying: 60 second, 30 minute and 12 hour.
IWC calibre 75320 automatic movement, based upon Sellita SW500-1, containing 25 Jewels, bitting at 28800 vph, and has a power reserve of approximately 44 hours.
Scratch resistant sapphire crystal.
Solid case back.
Round case shape.
Case size: 42 mm.
Case thickness: 13.6 mm.
Band width: 20 mm.
Fold over clasp.
Water resistant at 30 meters / 100 feet.
Functions: chronograph, date, day of the week, hour, minute, second.
Portofino Series.
Luxury watch style.
Watch label: Swiss Made.
IWC Portofino Chronograph Automatic Black Dial Mens Watch IW391030.
Case diameter-dimension 42 mm Case thickness 13.6 mm
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