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.
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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 Automatic 7 Day Power Reserve Reference 500705 Blue Hand & Index
IWC Portugieser Automatic 7 Day Power Reserve with blue hand and index, a men's watch measuring 43mm in size.
- Condition: 95%
- Case Material: 18K Rose Gold
- Movement Type: Mechanical Manual

IWC Portugieser Chronograph - 41mm - Beige Dial - IW371624 ( unworn / 2025 )
Up for sale is an unworn IWC Portugieser Chronograph in 41mm stainless steel, featuring a beige dial and in-house Calibre 69355.
- Condition: Unworn
- Case material: Stainless Steel
- Case size: 41mm
IWC SCHAFFHAUSEN PORTUGIESER CHRONOGRAPH YEAR OF THE DRAGON 41mm IW371629
This IWC Portugieser Chronograph features a red dial and is housed in a 41mm stainless steel case, paired with a black calfskin strap.
- Condition: EXCELLENT
- Material: stainless steel
- Band material: calfskin
- Case size: 41mm

IWC Portugieser Automatic 42.3MM Black Stainless Steel FULL SET MINT IW500703
The IWC Portugieser Automatic is a tribute to the brand's maritime heritage, featuring a stainless steel case and pitch black dial. It has a 7-day power reserve and includes hours, minutes, elapsed seconds subdial, and power reserve indicator.
- Condition: Mint condition with little to no signs of wear
- Case size: 42.3MM
- Water resistance: unknown
- Movement: Automatic

MINT Iwc IW500701 PORTUGIESER 7 DAY POWER RESERVE 18K ROSE GOLD 2024 FULL SET
This is a beautiful 2024 IWC Portuguese 7 Day Power Reserve in 18K rose gold with a silver dial and 41mm case. It comes with a Santoni dark brown alligator leather strap and an 18K rose gold deployant clasp.
- Condition: Mint, unpolished condition
- Case Size: 41mm
- Power Reserve: 7 days
- Warranty Years Remaining: under 8 years

IWC Portugieser Chronograph - 41mm - Blue Rubber - IW371620 ( new / 2024 )
This IWC Portugieser Chronograph features a 41mm stainless steel case, white and blue dial, and comes with an IWC Warranty Card dated November 2024.
- Condition: Unworn condition
- Case size: 41mm diameter
- Movement: In-House Calibre 69355

IWC Portugieser Chronograph - 41mm - Blue Dial - IW371606 ( new / 2024 )
This IWC Portugieser Chronograph features a stainless steel case, in-house Calibre 69355 movement, and blue dial.
- Condition: Unworn
- Case size: 41mm diameter
- Materials: Stainless Steel