IWC Portugieser Portugieser Constant-Force Tourbillon Double Moon Red Gold / Blue

Reference IW5901-06

About this watch

The IWC IW5901-06 Portugieser Constant-Force Tourbillon Double Moon in Red Gold and Blue is a masterpiece of horological engineering and design. This limited-edition timepiece showcases IWC's dedication to innovation, blending cutting-edge technology with exquisite design. The striking blue sunburst dial and luxurious red gold casing make this watch a bold statement piece that turns heads. With its patented constant-force mechanism integrated into the tourbillon, this watch ensures unwavering accuracy, akin to a well-tuned engine. The 1-second jumps of the tourbillon add a dynamic element to its beauty, while the double moonphase display tracks lunar cycles—a nod to IWC's maritime roots. Whether you're attending a formal event or enjoying a casual day out, this watch adapts seamlessly to your lifestyle. Its robust 96-hour power reserve and open caseback allow for a clear view of the intricate movement. With its stunning aesthetics and intricate engineering, every detail has been meticulously crafted to provide an unparalleled experience.
Buy Now on Jomashop
This is an affiliate link

Key Features

  • Patented constant-force mechanism
  • Hand-wound IWC caliber 94800 movement
  • Double moonphase display
  • 96-hour power reserve indicator
  • Red gold case with sapphire crystal
  • Blue sunburst dial
  • 46mm diameter and 13.40mm height

Specifications

Brand
IWC
Family
Portugieser
Model
Portugieser Constant-Force Tourbillon Double Moon Red Gold / Blue
Reference
IW5901-06
Movement
94800
Movement Features
  • Minutes, Hours, Small Seconds
  • Moonphase
  • Constant Force Mechanism, Tourbillon Escapement, Power Reserve Indicator
Case
Red Gold 46mm
Dial Color
Blue
Crystal
Sapphire
Water Resistance
30

Current Listings

IWC Portugieser Chronograph - 41mm - Gold Numerals - IW371604 ( new / 2024 )

IWC Portugieser Chronograph - 41mm - Gold Numerals - IW371604 ( new / 2024 )

IWC - IW371604 · $6,995.007
This IWC Portugieser Chronograph Automatic features a 41mm stainless steel case, in-house Calibre 69355 movement, and gold numerals.

  • Condition: Unworn condition
  • Case size: 41mm diameter
  • Movement: In-House Calibre 69355
Posted at
Jun 16, 2025, 3:36 PM
Active
IWC Portugieser Chronograph - 41mm - Blue Numerals - IW371605 ( new / 2025 )

IWC Portugieser Chronograph - 41mm - Blue Numerals - IW371605 ( new / 2025 )

IWC - IW371605 · $6,750.007
This IWC Portugieser Chronograph features a 41mm stainless steel case, an in-house Calibre 69355 movement, and a silver dial with blue numerals.

  • Condition: unworn
  • Case Size: 41mm
  • Movement: In-House Calibre 69355
Posted at
Jun 16, 2025, 3:35 PM
Active
[WTS] IWC Portugieser Chronograph IW371445 – $4,995 Shipped & Insured

IWC Portugieser Chronograph IW371445 – $4,995 Shipped & Insured

IWC - IW371445 · $4,995
An absolute classic from IWC, the IW371445 Portugieser Chronograph balances clean design with mechanical muscle. The silver-white dial paired with gold hands and applied numerals gives it timeless charm and legibility. The 40.9mm polished case sits beautifully on the wrist.

  • Condition: 9/10 - Excellent condition
  • Case size: 40.9mm diameter
  • Material: stainless steel
  • Dial: silver-white with gold numerals
Posted at
Jun 15, 2025, 3:12 PM
Active
IWC Portugieser Chronograph - 41mm - Gold Numerals - IW371604 ( new / 2024 )

IWC Portugieser Chronograph - 41mm - Gold Numerals - IW371604 ( new / 2024 )

IWC - IW371604 · $6,995
This IWC Portugieser Chronograph features a stainless steel case and gold numerals. It comes with all the original boxes, papers, booklets, and IWC Warranty Card.

  • Condition: unworn
  • Case size: 41mm diameter
  • Movement: In-House Calibre 69355
Posted at
Apr 2, 2025, 3:10 PM
Active
2023 IWC Portugieser 42 / IW500715

2023 IWC Portugieser 42 / IW500715

IWC - IW500715 · $8,675
2023 IWC Portugieser 42, a luxury watch in excellent condition with original boxes and papers. Comes with warranty card.

  • Condition: Very Good Condition
  • Boxes: Yes, complete set
  • Papers: Complete
  • Warranty: With warranty card
Posted at
Apr 1, 2025, 10:21 PM
Active
Iwc iw500701 portugieser 7 day power reserve rose gold watch

Iwc iw500701 portugieser 7 day power reserve rose gold watch

IWC - IW500701 · $12,995
This IWC PORTUGIESER model IW500701 features a 7 day power reserve and comes in 18K Rose gold on a leather band with deployment buckle.

  • Band material: leather
  • Case material: 18K Rose gold
Posted at
Mar 25, 2025, 10:07 PM
Active
IWC Portugieser Portugieser F.A. Jones in Rose Gold 5442-01 Limited Edition

IWC Portugieser Portugieser F.A. Jones in Rose Gold 5442-01 Limited Edition

IWC - IW544201 · $10,140
This is a limited edition IWC Portugieser F.A. Jones watch in rose gold, featuring mechanical manual movement and measuring 43mm in size.

  • Condition: 90%
  • Size: 43mm diameter
  • Case material: 18K Rose Gold
  • Limited edition: 1000 pieces
Posted at
Mar 7, 2025, 10:20 AM
Active
Reduced! IWC Portugieser Chronograph - 18k Rose Gold

Reduced! IWC Portugieser Chronograph - 18k Rose Gold

IWC - 3714-02 · $7,500
The IWC Portugieser Chronograph is an icon of watchmaking. This timeless design, with its perfect proportions and understated elegance, has captivated collectors worldwide.

  • Condition: Excellent
  • Case material: 18k solid rose gold
  • Bracelet type: Original IWC Leather Strap
Posted at
Mar 1, 2025, 9:09 PM
Active