IWC Portofino Automatic Moon Phase 37 Stainless Steel / Diamond / MOP IW4590-01
The IWC Portofino Automatic Moon Phase 37 was introduced in 2014. It marked the return of the moonphase display to the Portofino collection, which had been absent since the discontinuation of the Vintage Collection Portofino.Reference IW459001 has a stainless steel case. The bezel is set with 66 diamonds.
| Reference | IW4590-01 |
|---|---|
| Collection | Portofino |
| Case diameter | 37 mm |
| Case material | Mother of Pearl |
| Case shape | Round |
| Case back | Closed |
| Movement | IWC caliber 35800Hours |
| Water resistance | 30 m |
| Dial colour | White |
| Indexes | Gem-Set Indexes |
| Hands | Feuille |
| Crystal | Sapphire |
| Year introduced | 2014 |
| Limited edition | Yes |
This is a reference-catalog entry for the IWC Portofino Automatic Moon Phase 37 Stainless Steel / Diamond / MOP IW4590-01. 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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