THE REFERENCE LIBRARY IWC
Portofino Chronograph Stainless Steel / Silver / Milanese
REFERENCEIW3910-09 (aka: 3910-09, IW391009)
The details behind the design.
Explore this IWC reference, its specifications and its place in our watch archive.
- Movement
- Automatic
- Calibre
- 75320
- Introduced
- 2011
From the Superwatchman archive. A reference record, not an offer for sale.
A CLOSER LOOK
About this watch.
Reference 3910, , The Portofino Chronograph brings a sporty touch to the Portofino family. The striking push-buttons are reminiscent of the cockpit of 1960s Italian sports cars. The watch, which features a convex sapphire glass and appliquéd Roman numerals, is driven by either the automatic 79320 or 75320 calibre, both with a 44-hour power reserve.
THE DETAILS
Specifications.
- Brand
- IWC
- Collection
- Portofino
- Reference
- IW3910-09 (aka: 3910-09, IW391009)
- Introduced
- 2011
- Limited edition
- No
- Crystal
- Sapphire
- Case back
- Closed
- Case shape
- Round
- Dial colour
- Silver
- Frequency
- 28800 bph
- Indexes
- Stick / Dot
- Hands
- Feuille
- Movement
- Automatic
- Power reserve
- 44 h
- Calibre
- 75320
Archive details may be incomplete or dated. Confirm specifications with the manufacturer.