Reference
IWC Portofino Chronograph Red Gold / Grey IW3910-21
IWC Portofino Chronograph Red Gold / Grey IW3910-21 is a reference in the WatchFlow Watch Library. Key specs: 42 mm, Red Gold, IWC caliber 75320Hours movement, Grey dial.
| Reference | IW3910-21 |
|---|---|
| Collection | Portofino |
| Case diameter | 42 mm |
| Case material | Red Gold |
| Case shape | Round |
| Movement | IWC caliber 75320Hours |
| Water resistance | 30 m |
| Dial colour | Grey |
| Indexes | Stick / Dot |
| Bracelet / strap | Ardiose |
| Year introduced | 2011 |
| Limited edition | Yes |
This is a reference-catalog entry for the IWC Portofino Chronograph Red Gold / Grey IW3910-21. WatchFlow's Watch Library lets a dealer attach a reference like this to a piece of stock in one click, so the brand, reference and specs are filled in automatically instead of retyped — then that record drives listings, invoices and reports. See how it fits the wider watch inventory management workflow.
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