IWC Portofino Portofino Automatic 37 Stainless Steel / Ardoise

Reference IW4581-02

IWC Portofino Automatic 37 Stainless Steel / Ardoise

About this watch

The IWC Portofino IW4581-02 is a masterpiece of luxury watchmaking, blending elegance with functionality. This sophisticated timepiece features a sleek stainless steel case and charming grey dial, perfectly embodying timeless elegance. The round case shines brightly, while the ardoise (grey) dial adds a touch of sophistication. Feuille hands elegantly glide across the grey backdrop, accompanied by gem-set indexes that twinkle subtly, elevating the visual appeal without being ostentatious. At the heart of this watch is the IWC caliber 35111, an automatic movement developed by Sellita according to IWC specifications. This marvel of precision and reliability ensures smooth operation and accurate timekeeping, with a 42-hour power reserve that makes daily winding unnecessary. The Portofino Automatic 37's perfect size (37 mm diameter, 9 mm height) and comfortable wear make it an ideal choice for everyday wear. Paired with a high-quality leather strap, this watch exudes sophistication and is suitable for light splashes and rain. Although not designed for diving adventures, its elegant design, reliable movement, and comfortable fit make it a standout piece in any collection.

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Key Features

Automatic IWC caliber 35111 movement
Sleek stainless steel case
Charming grey dial with feuille hands
Gem-set indexes elevating visual appeal
42-hour power reserve for convenient wear

Specifications

Brand

IWC

Family

Portofino

Model

Portofino Automatic 37 Stainless Steel / Ardoise

Reference

IW4581-02

Movement

35111

Movement Features

Hours, Minutes, Seconds
Date

Case

Stainless Steel 37mm

Dial Color

Grey

Crystal

Sapphire

Water Resistance

Current Listings

2025 NEW IWC Portofino Chronograph Black IW391404 39mm Full Set - $5,995

IWC - IW391404 · $5,995

This 2025 IWC Portofino Chronograph Black is a brand new timepiece featuring a chronograph function. The watch comes in a 39mm case and includes a full set of accessories, including the box, travel case, international warranty card, and instructions manual.

Condition: New condition
Case size: 39mm diameter

Posted at

May 24, 2026, 11:47 AM

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IWC Portofino Chronograph $3200 SHIPPED

IWC - IW391002 · $3,200

A pre-owned IWC Portofino Chronograph in working condition at the time of listing, but not guaranteed for future performance.

Condition: Pre-owned, working condition
Case Size Without Crown: 42 mm
Case Size With Crown: 45 mm
Straps Included: 1

Posted at

May 23, 2026, 12:37 PM

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IWC Portofino 42MM Black Dial, Stainless Steel Full Set

IWC - IW391010 · $4,000

This 2018 IWC Portofino Chronograph features a black dial, stainless steel case and Milanaise bracelet. It includes day and date display, small hacking seconds, chronograph function and is a full set with original box, warranty card and manual.

Condition: beautiful condition with no visible scratches
Bracelet Type: Milanaise
Case Size: 42MM

Posted at

May 22, 2026, 8:14 PM

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2025 NEW IWC Portofino Chronograph Black IW391404 39mm Full Set - $5,995

IWC - IW391404 · $5,995

A 2025 IWC Portofino Chronograph Black IW391404 is available for sale. It features a chronograph function and comes with a full set including the watch, box, travel case, international warranty card, and instructions manual.

Condition: New condition
Size: 39mm diameter
Year: 2025
Case Contents: Watch, Box, Travel Case, International Warranty Card, Instructions Manual

Posted at

May 21, 2026, 10:00 PM

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IWC Portofino Chronograph — 42mm — Ref. IW391029 — $2,699 Shipped 🔥

IWC - IW391029 · $2,699

This IWC Portofino Chronograph features a clean, timeless case design paired with a classic chronograph layout. It's a refined everyday luxury chronograph that wears well at 42mm.

Condition: Fair overall
Case Diameter: 42mm
Condition Notes: Crystal has minor AR coating wear, Bezel, case, caseback, and clasp show hairlines from normal wear

Posted at

May 20, 2026, 9:35 PM

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IWC Portofino Automatic Moonphase 40mm IW459402 – Box/Watch/Papers – $5000 - Warranty until 11/2029!

IWC - IW459402 · $5,000

This IWC Portofino Automatic Moonphase features a 40mm case. The watch comes with its original box, papers, and is still under warranty until 11/2029.

Box: yes, included
Papers: yes, included
Warranty: until November 2029

Posted at

May 20, 2026, 5:54 PM

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IWC Portofino Automatic Moon Phase Limited Edition Year of the Snake Ref IW459604 37mm Full Kit 2025 $7,850

IWC - IW459604 · $7,850

The IWC Portofino Automatic Moon Phase Limited Edition Year of the Snake is a striking and elegant limited-edition piece that blends classic dress watch refinement with artistic flair. The 37mm polished stainless steel case paired with the rich burgundy/red dial gives this watch an eye-catching yet tasteful presence on the wrist.

Condition: great condition
Case size: 37.1 mm
Thickness: 11.3 mm
Dial color: burgundy/red

Posted at

May 16, 2026, 4:24 PM

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