IWC Portofino Portofino Automatic 37 Stainless Steel / Grey

Reference IW4586-03

About this watch

The IWC IW4586-03 Portofino Automatic 37 Stainless Steel / Grey is a masterpiece of luxury watchmaking, boasting an elegant design, robust movement, and versatility. Crafted from high-quality stainless steel, this timepiece exudes sophistication with its sunburst grey finish and sleek profile. The 32111 Calibre automatic movement offers reliability and performance, featuring a 120 hours power reserve and 164 components working in harmony. With a water resistance of 50 meters, this watch is suitable for everyday wear, including light swimming or snorkeling. Its adjustable leather strap ensures a comfortable fit on any wrist. A true investment piece, the IWC IW4586-03 combines heritage and modernity, making it an excellent choice for those seeking a classic timepiece that will be cherished for years to come.
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Key Features

  • Elegant sunburst grey finish
  • IWC Calibre 32111 automatic movement
  • 120 hours power reserve
  • Water resistance of 50 meters
  • Adjustable leather strap
  • Durable stainless steel construction
  • Comfortable fit for various wrist sizes

Specifications

Brand
IWC
Family
Portofino
Model
Portofino Automatic 37 Stainless Steel / Grey
Reference
IW4586-03
Movement
32111
Movement Features
  • Hours, Minutes, Seconds
  • Date
Case
Stainless Steel 37mm
Dial Color
Grey
Crystal
Sapphire
Water Resistance
50

Current Listings

[WTS] IWC Portofino Automatic Moon Phase 40mm IW459402

IWC Portofino Automatic Moon Phase 40mm IW459402

IWC - IW459402 · $5,750
2020 IWC Portofino Automatic Moon Phase in 40mm stainless steel with blue dial and moon phase display.

  • Condition: Very Good to Excellent pre-owned
  • Movement: automatic movement
  • Material: stainless steel
  • Case size: 40mm
Posted at
Mar 16, 2026, 8:11 PM
Active
[WTS] IWC Portofino Chronograph 39mm Black Dial IW391404

IWC Portofino Chronograph 39mm Black Dial IW391404

IWC - IW391404 · $5,750
2021 IWC Portofino Chronograph in 39mm stainless steel features a stunning, classic combination of black dial with gold hands and markers. A slim automatic chronograph, beautifully proportioned dress watch.

  • Condition: Very Good to Excellent pre-owned
  • Year: 2021
  • Material: stainless steel
  • Size: 39mm diameter
Posted at
Mar 16, 2026, 2:22 PM
Active
[WTS] IWC Portofino Automatic Moon Phase Limited Edition Year of the Snake Ref IW459604 37mm Full Kit 2025 $8,200

IWC Portofino Automatic Moon Phase Limited Edition Year of the Snake Ref IW459604 37mm Full Kit 2025 $8,200

IWC - IW459604 · $8,200
A limited edition IWC Portofino Automatic Moon Phase watch with a 37mm stainless steel case, burgundy/red dial, and moon phase display. It features an 18k 5N gold snake-shaped rotor and comes with two quick-change calfskin straps.

  • Condition: great condition
  • Case size: 37.1 mm
  • Thickness: 11.3 mm
  • Dial color: burgundy/red
Posted at
Mar 13, 2026, 9:14 PM
Active
[WTS] IWC Portofino Automatic Moon Phase 40mm Blue Dial IW459402 Complete

IWC Portofino Automatic Moon Phase 40mm Blue Dial IW459402 Complete

IWC - IW459402 · $4,950
A blue dial IWC Portofino Automatic Moon Phase in 40mm diameter, features an automatic movement.

  • Condition: In very good condition, rated at 9.5/10
  • Caseback scratches: a few microscratches
  • Clasp scratches: a few microscratches
  • Included items: Inner & outer IWC boxes, manual, and warranty card
Posted at
Mar 13, 2026, 10:29 AM
Active
[WTS] IWC Portofino Chronograph 39mm - Warrantly until 2030

IWC Portofino Chronograph 39mm - Warrantly until 2030

IWC - IW391406 · $5,200
The IWC Portofino Chronograph 39 combines a classic design with sportiness in a compact case size of 39 millimeters.

  • Case Size: 39mm diameter
  • Warranty Until: 2030
Posted at
Mar 13, 2026, 10:26 AM
Active
[WTS] IWC Portofino Automatic Moon Phase Limited Edition Year of the Snake Ref IW459604 37mm Full Kit 2025 $8,200

IWC Portofino Automatic Moon Phase Limited Edition Year of the Snake Ref IW459604 37mm Full Kit 2025 $8,200

IWC - IW459604 · $8,200
This IWC Portofino Automatic Moon Phase Year of the Snake is a limited-edition piece that combines classic dress watch refinement with artistic flair. The 37mm polished stainless steel case and rich burgundy/red dial make it an eye-catching yet tasteful presence on the wrist, while the moon phase display adds a sophisticated touch.

  • Condition: Great condition
  • Case diameter: 37.1 mm
  • Thickness: 11.3 mm
  • Water resistance: ~50 m (5 bar)
Posted at
Mar 6, 2026, 7:56 PM
Active
IWC Portofino Automatic 40MM IW356303 Silver Dial

IWC Portofino Automatic 40MM IW356303 Silver Dial

IWC - IW356303 · $2,080
IWC Portofino Automatic 40MM IW356303 Silver Dial is a men's watch with a mechanical automatic movement.

  • Condition: 90%
  • Size: 40mm diameter
  • Case material: Stainless Steel
Posted at
Apr 8, 2025, 8:48 AM
Active
2024 IWC Portofino Hand-Wound Moon Phase Silver Steel FULL SET MINT IW516401

2024 IWC Portofino Hand-Wound Moon Phase Silver Steel FULL SET MINT IW516401

IWC - IW516401 · $8,875
This IWC Portofino Hand-Wound Moon Phase features a silver-plated dial with a moon phase display, high-polished stainless steel domed bezel and case, and an exhibition caseback offering a clear view of the movement. It has an 8-day power reserve when fully wound and includes various functions such as hours, minutes, date, small seconds subdial, moon phase display, and power reserve indicator.

  • Condition: Mint
  • Case Size: 42mm
  • Material: stainless steel
  • Movement Type: hand-wound
Posted at
Apr 2, 2025, 5:33 PM
Active