IWC Portugieser Portugieser Constant-Force Tourbillon Double Moon Platinum / Silver
Reference IW5901-05
About this watch
The IWC IW5901-05 Portugieser Constant-Force Tourbillon Double Moon Platinum / Silver is a masterpiece of horology, blending art and science in a stunning limited edition timepiece. At its core is the IWC caliber 94800, a hand-wound movement with a patented constant force mechanism that ensures perfect balance. This tourbillon escapement counteracts gravity's effects on accuracy, making it a marvel of precision engineering. The platinum case and sunburst silver finish exude luxury, while the sapphire glass and open back design showcase the craftsmanship that went into creating this masterpiece. With a power reserve of 96 hours and water resistance of 30 meters, this watch is both functional and durable. Its double moonphase display serves as a decorative element and functional tool for astronomy enthusiasts and stargazers alike. As a limited edition with only 5 units produced, the IW5901-05 is a true collector's item that embodies artistry and engineering excellence.
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Key Features
- IWC Caliber 94800 Hand-Wound Movement
- Patented Constant Force Mechanism
- Tourbillon Escapement
- Double Moonphase Display
- 96-Hour Power Reserve
- 30-Meter Water Resistance
- Platinum Case with Sunburst Silver Finish
Specifications
- Brand
- IWC
- Family
- Portugieser
- Model
- Portugieser Constant-Force Tourbillon Double Moon Platinum / Silver
- Reference
- IW5901-05
- Movement
- 94800
- Movement Features
-
- Minutes, Hours, Small Seconds
- Moonphase
- Constant Force Mechanism, Tourbillon Escapement, Power Reserve Indicator
- Case
- 46mm
- Dial Color
- Silver
- Crystal
- Sapphire
- Water Resistance
- 30
Current Listings
![[WTS] IWC Portugieser Chronograph IW371624 Dune Dial 41mm Full Set 2024](https://preview.redd.it/xfgeksdu2e3h1.jpg?width=640&crop=smart&auto=webp&s=e21c63e19c14fa56a7ebfdd68b7c7cd363d1fe1b)
IWC Portugieser Chronograph IW371624 Dune Dial 41mm Full Set 2024
A pre-owned IWC Portugieser Chronograph Ref. IW371624 features a stainless steel case, dune dial on black alligator leather strap, and automatic chronograph movement. It is accompanied by its original box, papers, and contents.
- Condition: Very good condition with light signs of normal wear
- Case size: 41mm diameter
- Case material: Stainless steel
- Movement type: Automatic chronograph
![[WTS] REDUCED TO SELL: 1993 IWC Portugieser Jubilee Ref. 5441 – 18k Rose Gold – Limited Edition](https://preview.redd.it/f1g5aw9grd3h1.jpg?width=640&crop=smart&auto=webp&s=37f6e2596ec5231af5f24b3a7621c62baaea748e)
REDUCED TO SELL: 1993 IWC Portugieser Jubilee Ref. 5441 – 18k Rose Gold – Limited Edition
A limited edition 1993 IWC Portugieser Jubilee Ref. 5441 in 18k rose gold, one of only 500 produced to celebrate International Watch Company's 125th anniversary.
- Condition: very good vintage condition, minor scuffing around the ~10 o'clock area on the crystal
- Case size: ~42 mm
- Dial material: silver
- Movement type: manual winding
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IWC Portugieser Automatic (IW500109)
This IWC Portugieser Automatic features a black dial on a black leather strap, is discontinued and in very good condition. It comes with box, booklets, and warranty card dated January 2011.
- Condition: very good with a few light marks
- Case Material: Stainless Steel
- Bracelet Material: Leather
- Crystal: Sapphire
![[WTS] 2022 IWC Portugieser Chronograph Green IW371615 41mm Full Set - $5,995](https://preview.redd.it/6bdvfz54x33h1.jpg?width=640&crop=smart&auto=webp&s=9159d4a0ff9bbc52a08eed1dd3e923e60e025cbd)
2022 IWC Portugieser Chronograph Green IW371615 41mm Full Set - $5,995
A 2022 IWC Portugieser Chronograph Green, a chronograph watch with green dial. It features a 41mm case and is in excellent condition.
- Condition: Excellent condition with minimal signs of wear
- Year: 2022
- Case size: 41mm
![[WTS][US] IWC Portugieser Automatic 40 - Silver Dial - 40mm - IW358312 - BRAND NEW](https://preview.redd.it/qkt3e9tbsu2h1.jpg?width=640&crop=smart&auto=webp&s=7eedb450b7fcbcdc50a40895c6f8ab44fcda5f0b)
[US] IWC Portugieser Automatic 40 - Silver Dial - 40mm - IW358312 - BRAND NEW
This IWC Portugieser Automatic 40 is a mechanical watch with a silver dial and 40mm case. It features a digital transferable warranty until 12/2025.
- Condition: Brand new, unworn
- Case size: 40mm
![[WTS] 2022 IWC Portugieser Chronograph Green IW371615 41mm Full Set - $5,995](https://preview.redd.it/ncdbodktkl2h1.jpg?width=640&crop=smart&auto=webp&s=d7b5f8549e3b4d8c9e27591a0ba6173cee7aff6b)
2022 IWC Portugieser Chronograph Green IW371615 41mm Full Set - $5,995
This is a 2022 IWC Portugieser Chronograph Green, a high-end chronograph watch with a 41mm case size.
- Condition: Excellent condition with minimal signs of wear
- Year: 2022
- Case size: 41mm
![[WTS] IWC Portugieser Chronograph IW371624 Automatic Dune Dial 2024 41mm Full Set](https://preview.redd.it/2w81v03t7w1h1.jpg?width=640&crop=smart&auto=webp&s=010e3a44e87c9ca75618fae32f8b008ba4035e7a)
IWC Portugieser Chronograph IW371624 Automatic Dune Dial 2024 41mm Full Set
This is an IWC Portugieser Chronograph with a stainless steel case, dune dial on black alligator strap, and automatic movement.
- Condition: Very good
- Case size: 41mm diameter
- Material: Stainless steel
- Movement: Automatic
![[WTS] IWC Portugieser Tourbillon Mystere, White Gold IW504207 ♦️Lightly Used Undated♦️](https://preview.redd.it/31zjipr0zu1h1.jpg?width=640&crop=smart&auto=webp&s=0bd7f8374c669859e46b91d9cfe340e2eb79a1aa)
IWC Portugieser Tourbillon Mystere, White Gold IW504207 ♦️Lightly Used Undated♦️
This IWC Portugieser Tourbillon Mystere features a white gold case and is in lightly used condition. It comes with a full set, including the box and papers.
- Condition: Lightly Used
- Case material: White Gold
- Movement: Calibre 65
![[WTS] IWC Portugieser Automatic (IW500109)](https://preview.redd.it/hcyulvrcgp1h1.jpg?width=640&crop=smart&auto=webp&s=b1428fa4a1d291286c565e798073b5f3bb511d8f)
IWC Portugieser Automatic (IW500109)
This IWC Portugieser Automatic is a discontinued reference featuring a black dial on a black leather strap. It comes with box, booklets, and warranty card dated January 2011.
- Condition: Very Good
- Case Size: 42mm
- Case Material: Stainless Steel
- Bracelet Material: Leather