IWC Portofino Portofino Automatic Moonphase / Yellow Gold / White / Strap

Reference IW3550-01

IWC Portofino Automatic Moonphase / Yellow Gold / White / Strap

About this watch

The IWC Portofino IW3550-01 Automatic Moonphase watch exudes luxury and elegance. Crafted from yellow gold, this stunning timepiece features a white dial with stick and dot indexes, showcasing the perfect blend of classic styling and modern functionality. The self-winding movement, powered by the IWC caliber 3755, boasts a remarkable accuracy with a 42-hour power reserve and a frequency of 28,800 vibrations per hour. A moon phase complication adds an extra layer of sophistication, connecting the wearer to the cosmic rhythms of the month. With its durable sapphire crystal and comfortable fit, this watch is perfect for daily wear or special occasions. The ability to swap out the strap allows for customization to suit your personal style. Whether you're a seasoned collector or a newcomer to luxury watches, the IWC Portofino IW3550-01 deserves a spot in your collection.
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Key Features

  • Yellow Gold Case
  • Self-winding Movement with Moon Phase Complication
  • Durable Sapphire Crystal
  • Comfortable 34mm Diameter and 18mm Lug Width
  • Strong Resale Value
  • Water Resistance up to 30m
  • Luxurious White Dial with Stick and Dot Indexes

Specifications

Brand
IWC
Family
Portofino
Model
Portofino Automatic Moonphase / Yellow Gold / White / Strap
Reference
IW3550-01
Movement
3755
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Moonphase
Case
Yellow Gold 34mm
Dial Color
White
Crystal
Sapphire
Water Resistance
30

Current Listings

[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 striking and elegant design, featuring a moon phase display and a bespoke snake-shaped solid gold rotor.

  • Condition: Great condition
  • Case size: 37.1mm diameter
  • Thickness: 11.3mm
  • Water resistance: ~50m (5 bar)
Posted at
Mar 21, 2026, 3:36 PM
Active
View listing on r/WatchExchange
[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
This IWC Portofino Automatic Moon Phase features a blue dial in a 40mm case. It includes inner & outer IWC boxes, manual, and warranty card.

  • Condition: Very good, with a few microscratches on the caseback and clasp
  • Box set included: Yes
  • Warranty expiration year: 2028
Posted at
Mar 20, 2026, 10:23 AM
Active
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[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
View listing on r/WatchExchange
[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
View listing on r/WatchExchange
[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
View listing on r/WatchExchange
[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
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[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
View listing on r/WatchExchange
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
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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
View listing on RolexForums