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

Reference IW5901-09

IWC Portugieser Constant-Force Tourbillon Double Moon Platinum / Behebani

About this watch

The IWC IW5901-09 Portugieser Constant-Force Tourbillon Double Moon Platinum is a masterpiece of horology, boasting exceptional craftsmanship and design. Its platinum case shines with a premium finish, while the sunburst blue dial creates a striking contrast. The watch features intricate mechanics, including a tourbillon escapement and patented constant-force mechanism, ensuring impeccable accuracy. A double moonphase display adds an astronomical touch, while the ergonomic design makes it comfortable to wear on larger wrists. With only five pieces produced, this limited edition is a coveted collector's dream, combining traditional craftsmanship with modern technology.
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Key Features

  • Platinum case with premium finish
  • Sunburst blue dial with Arabic numerals and Feuille hands
  • Double moonphase display indicating moon phases in northern and southern hemispheres
  • 96-hour power reserve indicator
  • Water resistance of 30 meters
  • Ergonomic design for comfortable wear on larger wrists

Specifications

Brand
IWC
Family
Portugieser
Model
Portugieser Constant-Force Tourbillon Double Moon Platinum / Behebani
Reference
IW5901-09
Movement
94800
Movement Features
  • Minutes, Hours, Small Seconds
  • Moonphase
  • Constant Force Mechanism, Tourbillon Escapement, Power Reserve Indicator
Case
46mm
Dial Color
Blue
Crystal
Sapphire
Water Resistance
30

Current Listings

[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
View listing on r/WatchExchange
[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
View listing on r/WatchExchange
[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
View listing on r/WatchExchange
[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
View listing on r/WatchExchange
[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
View listing on r/WatchExchange
[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 2022 IWC Portugieser Chronograph Green features a 41mm case and is in excellent condition. It has been thoroughly tested on a timegrapher and is running well.

  • Condition: Excellent condition with minimal signs of wear
  • Year: 2022
  • Case Size: 41mm diameter
  • Contents: Watch, Box, Travel Case, International Warranty Card, Instructions Manual
Posted at
May 7, 2026, 11:51 AM
Active
View listing on r/WatchExchange
[WTS] IWC Portugieser Chronograph IW371624 Automatic Dune Dial 41mm Full Set

IWC Portugieser Chronograph IW371624 Automatic Dune Dial 41mm Full Set

IWC - IW371624 · $7,297
This is a pre-owned IWC Portugieser Chronograph with a stainless steel case, automatic movement, and dune dial on a black alligator strap. It's in very good condition with normal signs of wear.

  • Condition: Very good condition
  • Case size: 41mm
  • Case material: Stainless steel
Posted at
May 4, 2026, 10:21 AM
Active
View listing on r/WatchExchange
[WTS] IWC Portugieser Automatic (IW500109)

IWC Portugieser Automatic (IW500109)

IWC - IW500109 · $5,500
This IWC Portugieser Automatic features a black dial on a black leather strap, with a stainless steel case and automatic movement.

  • Condition: Very good condition
  • Case Size: 42mm diameter
  • Case Material: Stainless Steel
  • Bracelet Material: Leather
Posted at
May 3, 2026, 9:21 AM
Active
View listing on r/WatchExchange
[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
2022 IWC Portugieser Chronograph Green, a timepiece in excellent condition.

  • Condition: Excellent condition with minimal signs of wear
  • Year: 2022
  • Case size: 41mm
Posted at
May 2, 2026, 12:25 PM
Active
View listing on r/WatchExchange