IWC Portugieser Portugieser Constant-Force Tourbillon Double Moon Platinum / Black

Reference IW5901-04

About this watch

The IWC IW5901-04 Portugieser Constant-Force Tourbillon Double Moon is a masterpiece of luxury watchmaking, combining stunning design with intricate mechanics. Crafted from platinum, this limited-edition timepiece boasts a 46mm case size and features a black sunburst dial with Arabic numerals and feuille hands. The tourbillon at 6 o'clock showcases the watch's technical prowess, while the patented constant force mechanism ensures precise timekeeping. With a power reserve of 96 hours and water resistance up to 30 meters, this watch is designed for formal occasions. Its exclusivity, complexity, and craftsmanship make it a must-have for serious collectors, and its value is likely to appreciate over time.
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Key Features

  • IWC Caliber 94800 movement
  • Platinum case with black sunburst dial
  • Tourbillon at 6 o'clock
  • Patented constant force mechanism
  • Double moonphase display
  • 96-hour power reserve
  • 30-meter water resistance

Specifications

Brand
IWC
Family
Portugieser
Model
Portugieser Constant-Force Tourbillon Double Moon Platinum / Black
Reference
IW5901-04
Movement
94800
Movement Features
  • Minutes, Hours, Small Seconds
  • Moonphase
  • Constant Force Mechanism, Tourbillon Escapement, Power Reserve Indicator
Case
46mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
30

Current Listings

[WTS][US] IWC Portugieser Automatic 40 - Silver Dial - 40mm - IW358312 - BRAND NEW

[US] IWC Portugieser Automatic 40 - Silver Dial - 40mm - IW358312 - BRAND NEW

IWC - IW358312 · $6,925
This IWC Portugieser Automatic 40 is a high-end mechanical watch with a silver dial and 40mm case. It's fully linked and comes with an extensive set of accessories. The watch functions perfectly mechanically and is in pristine condition.

  • Condition: Brand new, unworn
  • Case size: 40mm
Posted at
May 16, 2026, 7:40 AM
Active
[WTS] IWC Portugieser Hand-Wound Eight Days Edition 150 Years - $5,000

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Up for sale is an IWC Portugieser Hand-Wound Eight Days Edition 150 Years, a dress watch that rarely gets worn.

  • Condition: 2 light marks on the case, clean crystal
  • Case condition: 2 light marks on the case
  • Crystal condition: clean
  • Included accessories: original boxes, original strap, extra blue alligator strap, documents
Posted at
May 15, 2026, 3:45 PM
Active
[WTS] 2022 IWC Portugieser Chronograph Green IW371615 41mm Full Set - $5,995

2022 IWC Portugieser Chronograph Green IW371615 41mm Full Set - $5,995

IWC - IW371615 · $5,995
A 2022 IWC Portugieser Chronograph Green, a 41mm luxury watch featuring chronograph functionality.

  • Condition: Excellent condition with minimal signs of wear
  • Case Size: 41mm
Posted at
May 14, 2026, 12:47 PM
Active
[WTS] IWC Portugieser Chronograph IW371624 Automatic Dune Dial 2024 41mm Full Set

IWC Portugieser Chronograph IW371624 Automatic Dune Dial 2024 41mm Full Set

IWC - IW371624 · $6,997
This pre-owned IWC Portugieser Chronograph features a stainless steel case with dune dial on black alligator strap and automatic movement.

  • Condition: Very good condition
  • Case size: 41mm diameter
  • Movement type: Automatic
Posted at
May 11, 2026, 8:52 AM
Active
[WTS] IWC Portugieser Automatic (IW500109)

IWC Portugieser Automatic (IW500109)

IWC - IW500109 · $5,500
This IWC Portugieser Automatic is a discontinued reference featuring a black dial on a black leather strap, with a case size of 42mm and stainless steel construction. It comes with box, booklets, and warranty card dated January 2011.

  • Condition: very good
  • Case size: 42mm diameter
  • Case material: Stainless Steel
  • Bracelet material: Leather
Posted at
May 10, 2026, 11:45 AM
Active
[WTS] IWC Portugieser Regulateur. IW544401. Box, Papers...

IWC Portugieser Regulateur. IW544401. Box, Papers...

IWC - IW544401 · $5,500
A IWC Portugieser Regulateur, a high-end watch with complex features.

  • Box: true
  • Papers: true
Posted at
May 9, 2026, 3:52 PM
Active
[WTS] IWC Portugieser Chronograph IW371616

IWC Portugieser Chronograph IW371616

IWC - IW371616 · $7,100
For sale is a IWC Portugieser Chronograph IW371616 in excellent condition, featuring a red / burgundy sunburst dial. This watch is part of the modern Portugieser Chronograph lineup from IWC Schaffhausen and has a slim profile, balanced dial layout, and signature feuille hands.

  • Condition: Excellent
  • Case material: Stainless steel
  • Case size: 41mm
  • Dial color: Burgundy sunburst
Posted at
May 9, 2026, 2:06 PM
Active
[WTS] 2022 IWC Portugieser Chronograph Green IW371615 41mm Full Set - $5,995

2022 IWC Portugieser Chronograph Green IW371615 41mm Full Set - $5,995

IWC - IW371615 · $5,995
This is a 2022 IWC Portugieser Chronograph Green, a 41mm watch with chronograph functionality.

  • Condition: Excellent condition with minimal signs of wear
  • Case size: 41mm diameter
  • Water resistance: 30m depth rating
Posted at
May 9, 2026, 11:22 AM
Active
[WTS][US] IWC Portugieser Automatic 40 - Silver Dial - 40mm - IW358312 - BRAND NEW

[US] IWC Portugieser Automatic 40 - Silver Dial - 40mm - IW358312 - BRAND NEW

IWC - IW358312 · $6,950
This IWC Portugieser Automatic 40 features a silver dial and 40mm case. It is fully mechanical with no issues and includes various accessories.

  • Condition: Brand new, unworn
  • Case size: 40mm
  • Movement type: Automatic
Posted at
May 9, 2026, 7:23 AM
Active