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

Reference IW5901-10

IWC Portugieser Constant-Force Tourbillon Double Moon Platinum / Green

About this watch

The IWC IW5901-10 Portugieser Constant-Force Tourbillon Double Moon Platinum / Green is a masterpiece that marries technology with art. This stunning timepiece radiates elegance with its platinum case and green sunburst finish, making it an instant conversation starter. The 46 mm diameter case is bold yet refined, designed to fit comfortably on the wrist. The dial features Arabic numerals, feuille hands, and a mesmerizing combination of moonphase indicator and constant force mechanism display. At the heart of this watch is the IWC manufactured Caliber 94800, showcasing the brand's commitment to excellence with its 43 jewels and 18,000 vibrations per hour frequency. The patented constant force mechanism ensures stable amplitude, while the tourbillon escapement provides a unique 1-second jump. With a 96-hour power reserve, this watch offers reliability that few can match. Its 30 meters of water resistance means it can handle splashes and light rain, although it's not designed for underwater adventures. The limited edition of only 5 units adds a layer of exclusivity, making owning this piece a badge of honor for serious collectors.

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Key Features

IWC Caliber 94800 movement
Platinum case with green sunburst finish
46 mm diameter and 13.40 mm height
30 meters water resistance
Limited edition of only 5 units
Patented constant force mechanism
Tourbillon escapement with unique 1-second jump

Specifications

Brand

IWC

Family

Portugieser

Model

Portugieser Constant-Force Tourbillon Double Moon Platinum / Green

Reference

IW5901-10

Movement

94800

Movement Features

Minutes, Hours, Small Seconds
Moonphase
Constant Force Mechanism, Tourbillon Escapement, Power Reserve Indicator

Case

46mm

Dial Color

Green

Crystal

Sapphire

Water Resistance

Current Listings

IWC Schaffhausen Portugieser. Blue Hands/Indices. 40mm. IW358312. Card Included..

IWC - IW358312 · $5,350

This IWC Portugieser is a gorgeous timepiece with an inhouse movement, featuring blue hands and indices on a 40mm case.

Movement type: inhouse automatic
Diameter: 40mm

Posted at

Mar 24, 2026, 7:16 PM

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IWC Portugieser Automatic 40 - Silver Dial - 40mm - IW358312 - BRAND NEW

IWC - IW358312 · $7,125

This is an IWC Portugieser Automatic 40 with a silver dial and 40mm case size. It's brand new and functions perfectly mechanically.

Condition: Brand new, unworn
Case diameter: 40mm

Posted at

Mar 21, 2026, 11:52 AM

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IWC Portugieser Chronograph IW371417 – Box & Papers – Automatic – Excellent Condition

IWC - IW371417 · $4,850

A clean example of the IWC Portugieser Chronograph IW371417, featuring a classic silver dial with Arabic numerals and blued hands. This is one of IWC’s most recognizable and wearable chronographs, offering a refined profile with strong everyday versatility.

Condition: Excellent
Case Size: 41mm diameter
Movement: Cal. 79350 automatic movement
Case Material: Stainless Steel

Posted at

Mar 18, 2026, 10:09 PM

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IWC Portugieser Chronograph Rattrapante “Edition Boutique Canada” – Ref. IW371220 – #027/150 – Full Set

IWC - IW371220 · $8,000

This is a rare IWC Portugieser Chronograph Rattrapante, one of only 150 pieces produced for the Edition Boutique Canada. It features a rattrapante complication, allowing two simultaneous elapsed times to be measured independently.

Condition: Excellent, lightly worn
Movement: IWC Caliber 76240, hand-wound rattrapante chronograph
Case size: 40.9mm diameter
Water resistance: 30m depth rating

Posted at

Mar 15, 2026, 6:08 PM

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2023 IWC Portugieser Automatic 40 IW358312 Full Set Excellent

IWC - IW358312 · $6,597

A refined, modern interpretation of the classic Portugieser design.

Condition: Excellent
Year: 2023
Contents: Full Set

Posted at

Mar 14, 2026, 3:04 PM

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IWC Portugieser Automatic 40 - Silver Dial - 40mm - IW358312 - BRAND NEW

IWC - IW358312 · $7,150

This IWC Portugieser Automatic is a brand new watch with a silver dial and 40mm case size. It features a mechanical movement and includes a full set of accessories.

Condition: Brand new, unworn, pristine condition
Case diameter: 40mm

Posted at

Mar 14, 2026, 11:29 AM

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IWC 1993 Portugieser Jubilee Ref. 5441 — 18k Rose Gold — Limited Edition

IWC - 5441 · $15,249

This 1993 IWC Portugieser Jubilee Ref. 5441 is a historically significant limited edition watch produced in 18k rose gold to celebrate International Watch Company's 125th anniversary.

Condition: Very good, minor scuffing around the 10 o'clock area on the crystal
Case size: ~42mm diameter
Dial material: silver
Movement type: manual-winding

Posted at

Mar 13, 2026, 7:13 PM

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IWC Portugieser Automatic 40.4mm - Full Set - Warranty to 2030

IWC - IW358304 · $5,300

The Portugieser Automatic has a classic dial design and ergonomically optimized strap horns for greater comfort, available in a 40.4mm stainless steel case with a silver-plated dial and blue tone appliqués.

Case Size: 40.4mm
Movement: IWC-manufactured 82200-calibre

Posted at

Mar 13, 2026, 10:35 AM

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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

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