Skip to content Skip to main content
IWC Portofino Automatic 37 Net-A-Porter IW4581-20
Reference

IWC Portofino Automatic 37 Net-A-Porter IW4581-20

The IWC Portofino 4581 was introduced in 2021. This version of IWC's Portofino watch features a case of 37mm, which houses the self-winding caliber 35111. In the case of reference IW4581-20, the case is made of Stainless Steel. The dial is Silver. It is exclusively available through Net-A-Porter.

ReferenceIW4581-20
CollectionPortofino
Case diameter37 mm
Case materialStainless Steel
Case shapeRound
Case backClosed
MovementIWC caliber 35111Hours
Water resistance30 m
Dial colourSilver
IndexesGem-Set Indexes
HandsFeuille
CrystalSapphire
Year introduced2021
Limited editionYes

This is a reference-catalog entry for the IWC Portofino Automatic 37 Net-A-Porter IW4581-20. 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.

Run a sharper watch business

Inventory, invoices, listings, CRM, deals and payments — one clean platform. Free to start, no card.

Start free