IWC Schaffhausen – PORTUGIESER Tourbillon Rétrograde Chronograph Black 43.5mm Armor Gold® Automatic Edition 2025
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THE IWC SCHAFFHAUSEN PORTUGIESER TOURBILLON RÉTROGRADE CHRONOGRAPH IN 18-CARAT ARMOR GOLD® WITH AN OBSIDIAN-COLOURED DIAL
Schaffhausen, 3rd July 2025: IWC Schaffhausen introduces the Portugieser Tourbillon Rétrograde Chronograph. Limited to 100 pieces, this masterwork of fine watchmaking combines a flying minute tourbillon with a retrograde date display and a flyback chronograph. Its 43.5-millimetre case is crafted from 18-carat Armor Gold®, a material offering significantly better hardness values than conventional gold alloys. The Obsidian-coloured dial is crafted in a complex process, including the application of 15 layers of transparent lacquer. The IWC-manufactured 89900 calibre with a solid gold oscillating mass can be viewed through the sapphire glass case back.
Click, to see the large size. ▶ BIG FOTO
Click, to see the large size. ▶ BIG FOTO
A STATE-OF-THE-ART FLYING MINUTE TOURBILLON
The tourbillon is one of the most spectacular complications in fine watchmaking, both for the complexity of its design and its striking visual appeal. This intricate mechanism places the pallet lever and the escape wheel inside a small cage that rotates around its axis once every minute. The continuous rotation reduces the effects of gravity on the watch’s oscillating system and contributes to a more precise rate.
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RETROGRADE DATE DISPLAY AND FLYBACK CHRONOGRAPH
In addition to the flying minute tourbillon, the Portugieser Tourbillon Rétrograde Chronograph also features a retrograde date display located at 9 o’clock on the dial. A small hand points to the current date on an arch-shaped scale ranging from the 1st to the 31st. After reaching the end of the month, the hand will jump back to the starting position.
Click, to see the large size. ▶ BIG FOTO
Click, to see the large size. ▶ BIG FOTO
Click, to see the large size. ▶ BIG FOTO
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TECHNICAL SPECIFICATIONS
Model: PORTUGIESER Tourbillon Rétrograde Chronograph Lewis Hamilton
Click, to see the large size. ▶ BIG FOTO
Ref. IW394009
FEATURES
– Flying hacking minute tourbillon at 6 o’clock
– Retrograde date display
– Stopwatch function with hours, minutes and seconds
– Hour and minute counters combined in a totaliser at 12 o’clock
– Flyback function
– 18-carat gold oscillating weight
– See-through sapphire glass back
– Limited to 100 pieces
IWC-manufactured calibre 89900
Frequency: 28,800 A/h | 4 Hz
Jewels: 42
Power reserve: 68 h
Winding: Automatic
Rotor in 18-carat 5N gold
WATCH
Materials: 18-carat Armor Gold®
Diameter: 43.50 mm
Height: 15.90 mm
Water-resistant: 3 bar
DIAL
Black obsidian-coloured dial
Gold-plated hands, solid gold appliques
Glass: Sapphire glass, arched-edge, antireflective coating on both sides
STRAP
Black alligator leather strap by Santoni
Distance between horns: 22.0 MM18-carat Armor Gold® Folding clasp
🔰Edition
Limited edition of 100 timepieces
🔴 Price: upon request 💰
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Further Information
IWC Schaffhausen Baumgartenstrasse 15 · CH-8201 Schaffhausen
Phone +41 (0)52 235 75 65 · Fax +41 (0)52 235 75 01 · press@iwc.com ·
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Press releases - 2025
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IWC Schaffhausen
Baumgartenstrasse 15 ·
CH-8201 Schaffhausen
Phone +41 (0)52 235 75 65 ·
Fax +41 (0)52 235 75 01 ·
Mobile +41 (0)79 957 72 52
E-mail info@iwc.com
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