Comparison
IWC Schaffhausen IW3731 vs IWC Schaffhausen IW391503
Sourced specs side by side. A value is highlighted only where one is objectively greater (power reserve); size and the rest are a matter of taste. unknown means no sourced value yet.
At a glance
- Both belong to the IWC Schaffhausen Portofino Chronograph family.
| Spec | IW3731 | IW391503 |
|---|---|---|
| Brand | IWC Schaffhausen | IWC Schaffhausen |
| Family | Portofino Chronograph | Portofino Chronograph |
| Reference | IW3731 | IW391503 |
| Production start | unknown | unknown |
| Production end | unknown | unknown |
| Status | unknown | unknown |
| Retail price | unknown | unknown |
| Case material | unknown | Stainless steel |
| Diameter | unknown | 39 mm |
| Movement | unknown | unknown |
| Caliber | unknown | unknown |