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Portugieser

IW394009

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Portugieser Tourbillon Rétrograde Chronograph

Automatic winding, Diameter 43.5 mm

IW394007 - Portugieser Tourbillon Rétrograde Chronograph

IW394005 - Portugieser Tourbillon Rétrograde Chronograph

IW394006 - Portugieser Tourbillon Rétrograde Chronograph

Black, 18 ct Armor Gold® Case

PRODUCT INFORMATION

Black dial
Black alligator leather strap by Santoni
Strap width 22.0 mm

DELIVERY & RETURNS INFORMATION

Limited Availability – contact us to learn about purchase options

Portugieser Tourbillon Rétrograde Chronograph

Limited to 100 pieces, this masterwork of fine watchmaking is crafted from 18-carat Armor Gold® and combines a flying minute tourbillon with a retrograde date display and a flyback chronograph.

ABOUT THE WATCH

Portugieser Tourbillon Rétrograde Chronograph

The Portugieser Tourbillon Rétrograde Chronograph features a case, pushers and crown meticulously crafted from 18-carat Armor Gold®. Thanks to an improved microstructure, this material boasts significantly better hardness values than conventional gold alloys. The Obsidian-coloured dial is manufactured in a complex process comprising 60 individual steps. 15 layers of transparent lacquer give it an incredible optical depth. The dial is complemented with gold-plated hands and solid gold appliques. The flying minute tourbillon at 6 o’clock consists of 56 individual parts and weighs only 0.675 grams. Thanks to the integrated tourbillon stop, it can be brought to a complete halt and the time set with down-to-the-second accuracy. The pallet lever and the escape wheel are made of silicone and coated using IWC’s proprietary Diamond Shell® technology. It reduces friction and improves the flow of energy in the movement, contributing to the generous power reserve of 68 hours. The Portugieser Tourbillon Rétrograde Chronograph also features a retrograde date display located at 9 o’clock. A small hand points to the current date on an arch-shaped scale ranging from the 1st to the 31st. At the end of the month, the hand jumps back to the starting position. The third complication is the flyback chronograph. It displays the hours and minutes combined in a totalizer at 12 o’clock, making them easy and intuitive to read. The Portugieser Tourbillon Rétrograde Chronograph is powered by the IWC-manufactured 89900 calibre, which comprises a total of 375 parts. Decorated with Geneva stripes and circular graining and featuring a solid gold oscillating mass, the movement can be observed through the sapphire glass case back. The watch is fitted with a black alligator leather strap from the Italian leather artisan Santoni with an 18-carat Armor Gold® folding clasp.