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Portugieser

Limited Edition

IW504504

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Portugieser Perpetual Calendar Tourbillon

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

IW504505 - Portugieser Perpetual Calendar Tourbillon

18 ct Armor Gold® case, Automatic winding, Diameter 45.0 mm, Blue dial, Blue alligator leather strap by Santoni, Strap width 22.0 mm.

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Perpetual calendar | IWC Schaffhausen

The perpetual calendar is one of the most fascinating haute horlogerie complications.

Watch Details

case
Movement
Features

case

18 ct Armor Gold® case
Diameter 45.0 mm
Height 15.2 mm
See-through sapphire glass back
Water resistance 3.0 bar

Movement

51950 Calibre
IWC-manufactured movement
Automatic winding
168 hours power reserve
Frequency 19'800 VPH (2.75 Hz)
438 Components
54 Jewels
Côtes de Genève

Features

Rotor in 18-carat 5N gold
Pellaton automatic winding
Sapphire glass, arched-edge, antireflective coating on both sides
Power reserve display
Perpetual calendar with displays for the date, day, month, year in four digits and perpetual moon phase
Flying minute tourbillon
7 days power reserve
Limited to 50 pieces

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

Download manual

Download catalog extract

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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 Perpetual Calendar Tourbillon

The Portugieser Perpetual Calendar Tourbillon combines two horological complications on the dial.

Portugieser Perpetual Calendar Tourbillon

The Portugieser Perpetual Calendar Tourbillon combines two horological complications on the dial.

The Portugieser Perpetual Calendar Tourbillon unites two sophisticated Haute Horlogerie complications. The tourbillon, made of 82 individual parts, weighs only 0.635 grams. The "whirlwind" causes the balance wheel to rotate around its own axis, compensating for the effect of gravity on the oscillating system and increasing accuracy. Requiring no correction until 2100, the perpetual calendar automatically recognizes the different lengths of the months and leap years. The moon phase display is so precise that it will deviate by one day only after 577.5 years. The self-winding IWC-manufactured 51950 calibre boasts a power reserve of 7 days. The case is made of 18-carat Armor Gold®. Thanks to a modified microstructure, this material is significantly harder than traditional gold alloys. The blue dial, gold-plated hands and the 18-carat gold appliqués underscore the maritime character of this special edition, which is limited to 50 pieces and sold exclusively in IWC boutiques. The timepiece is fitted with a blue alligator leather strap.

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Portugieser Perpetual Calendar Tourbillon

Perpetual calendar | IWC Schaffhausen

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Watch Details

case

Movement

Features