Official Documents
Make the most out of your IWC watch to make it last longer. Here’s all the useful information for its maintenance.
IWIW504501-Portugieser Perpetual Calendar Tourbillon Edition “150 Years”
IW504501 Specifications
case
case
Movement
Movement
- 51950 Calibre
- IWC-manufactured movement
- Automatic, self-winding
- 168 hours Power Reserve
- Frequency 19800.0 vph (2.75 hz)
- 456 Components
- 54 Jewels
- Côtes de Genève, perlage
Features
Features
- Flying minute tourbillon
- Perpetual calendar with displays for the date, day, month, year in four digits and perpetual moon phase
- 7 days power reserve
- Power reserve display
- Sapphire glass, arched-edge, antireflective coating on both sides
- Pellaton automatic winding
- Rotor in 18-carat 5N gold
- Limited to 50 pieces
Care for your IWC Watch
Like any precision mechanical instrument, a watch from IWC Schaffhausen needs regular care and maintenance.
Learn more about your watch and how to maintain it.
Complete Service
It involves a full overhaul of the timepiece and is a complex, largely manual task that takes several hours.
HOW-TO TIPS
Learn how to clean your watch, wind it and more in our six-part “How To…” video series.
FAQS
If you can’t find answers to your questions here, please feel free to contact a member of our service staff.
Calibre Family 50000
The 50000-calibre family features the efficient Pellaton pawl-winding system with a 7-day power reserve and a Breguet spring for maximum precision.
Moon phase display
IWC’s moon phase displays are not just aesthetic works of art – they are extremely precise and diverge from the actual phase of the moon by just 1 day in 577.5 years.
Perpetual calendar
The perpetual calendar is one of the most fascinating haute horlogerie complications: It is mechanically programmed for 577 years.
Tourbillon Mystère
Watch lovers are fascinated by the arrangement of the “flying” tourbillon, consisting of 82 parts, against a deep black background.
