IWC Portofino IW391028
42mm · Stainless Steel · Caliber 79320 · 30m
IWC Schaffhausen Portofino Chronograph
Related references — same collection
Shared specifications help discovery; these links do not assert a predecessor or successor relationship.
Compare specifications
| Specification | IW391028 | IW3910-19 | IW3910-23 | IW3910-24 | IW391027 |
|---|---|---|---|---|---|
| Case diameter | 42mm | 42mm | 42mm | 42mm | 42mm |
| Case material | Stainless Steel | Stainless Steel | Stainless Steel | Stainless Steel | Stainless Steel |
| Water resistance | 30m | 30m | 30m | 30m | 30m |
| Movement | Automatic | — | — | — | Automatic |
| Caliber | 79320 | 79320 | 79320 | 79320 | 79320 |
| Power reserve | 44 hours | — | — | — | 44 hours |
Sources & record notes
Displayed specifications follow the most complete source record. Other source records are retained below; conflicting values are not silently combined. The Watch Pages.
- The Watch Pages ↗ · 2026-09-24 02:56:57 JST
The Watch Pages · IWC Schaffhausen IW391028
Original collection: Not recorded
Technical Specifications / Date Added: September 10, 2021 Technical Specifications / Reference: IW391028 Technical Specifications / Brand: IWC Schaffhausen Technical Specifications / Case Size: 42mm Technical Specifications / Case Material: Stainless Steel Technical Specifications / Dial Color: Silver Technical Specifications / Movement: Automatic Technical Specifications / Caliber: 79320 Technical Specifications / Power Reserve: 44 hours Technical Specifications / Water Resistance: 30m Technical Specifications / Strap Material: Stainless Steel Technical Specifications / Buckle Type: Folding Clasp Technical Specifications / Style: Sporty Technical Specifications / Special Features: Water Resistant Technical Specifications / Complications: Chronograph, Small Seconds, Day of the Week Indicator, Date
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