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Portugieser Hand-Wound Tourbillon

Variation — Silver, 18 ct Armor Gold® case Size guide

18 ct Armor Gold® case, Manual-winding, Diameter 42.4 mm, Silver dial, Black alligator leather strap by Santoni, Strap width 22.0 mm.

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Watch Details

case
Movement
Features

case

18 ct Armor Gold® case
Diameter 42.4 mm
Height 10.8 mm
See-through sapphire glass back
Water resistance 6.0 bar

Movement

81905 Calibre
IWC-manufactured movement
Manual-winding
84 hours power reserve
Frequency 28'800 VPH (4 Hz)
159 Components
20 Jewels
Côtes de Genève

Features

Sapphire glass, convex, antireflective coating on both sides
Hacking tourbillon mechanism

Care For Your Watch

Complete Service

It involves a full overhaul of the timepiece and is a complex, largely manual task that takes several hours.

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HOW-TO TIPS

Learn how to clean your watch, wind it and more in our six-part “How To…” video series.

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OFFICIAL DOCUMENTS

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Exclusive Service

SHIPPING & DELIVERY

We offer three methods of delivery:

Standard: 5-7 business days* Express: 2 business days* Urgent: next business day**

Orders purchases online or by phone can be returned within 30 days free of charge.

SHIPPING AND DELIVERY CONDITIONS

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EXTENDED WARRANTY

Register to become a member of my IWC and benefit from a 6-year extension to the standard 2-year international limited warranty.

Portugieser Hand-Wound Tourbillon

The Portugieser Hand-Wound Tourbillon combines timeless modern Portugieser design with a flying minute tourbillon at 6 o’clock.

Portugieser Hand-Wound Tourbillon

The Portugieser Hand-Wound Tourbillon combines timeless modern Portugieser design with a flying minute tourbillon at 6 o’clock.

The tourbillon is one of the most outstanding achievements in the art of watchmaking. The balance, pallet lever and escape wheel are placed in a tiny cage that rotates around its axis once a minute. This constant rotation contributes to offset the effect of gravity on the watch’s oscillating system while, at the same time, creating a visual spectacle on the dial. In the Portugieser Hand-Wound Tourbillon, the flying tourbillon has been placed at 6 o’clock. It consists of 56 individual parts and weighs only 0.635 grams. Thanks to the tourbillon stop, it can be brought to a complete halt, allowing the time to be set with down-to-the-second accuracy. The pallet lever and escape wheel have been coated with Diamond Shell® technology. The smooth diamond-coated surface reduces friction, which improves the flow of energy in the movement. The case and crown are made of 18-carat Armor Gold®. Thanks to a modified microstructure, this innovative new material boasts significantly higher hardness values than traditional gold alloys. The applied Arabic numerals and feuille hands in gold harmonise beautifully with the silver-plated dial. The IWC-manufactured 81905 calibre has been engineered specifically for this timepiece. The movement consists of 159 individual parts and is manually wound, storing a power reserve of 84 hours in its mainspring. Through the sapphire crystal case back, one can admire the decorations on the bridges and the solid gold medallion with the “Probus Scafusia” inscription. This elegant Portugieser is fitted with a black alligator leather strap from the Italian shoe manufacturer Santoni.

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Portugieser Hand-Wound Tourbillon

Watch Details

case

Movement

Features