IWIW503601-Big Pilot’s Watch Perpetual Calendar Spitfire

IW503601

Big Pilot’s Watch Perpetual Calendar Spitfire Add to my wishlist

Price excluding taxes and including shipping.
Price excluding taxes and including shipping.

Bronze case, Automatic, self-winding, Diameter 46.2 mm.

Made in Schaffhausen, Switzerland.

Available to buy online. Orders can be returned within 30 days free of charge.

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IW503601 Specifications

case

case

  • Bronze case
  • Diameter 46.2 mm
  • Height 15.4 mm
  • Screw in crown
  • See-through sapphire glass back
  • Water resistance 6 bar

Movement

Movement

  • 52615 Calibre
  • IWC-manufactured movement
  • Automatic, self-winding
  • 168 hours Power Reserve
  • Frequency 28800.0 vph (4.0 hz)
  • 386 Components
  • 54 Jewels
  • Côtes de Genève, perlage

Features

Features

  • Perpetual calendar with displays for the date, day, month, year in four digits and perpetual moon phase for the northern and southern hemisphere
  • 7 days power reserve
  • Power reserve display
  • Date display
  • Glass secured against displacement by drop in air pressure
  • Sapphire glass, convex, antireflective coating on both sides
  • Pellaton automatic winding
  • Small hacking seconds
  • Limited to 250 pieces

dial

dial

  • Green dial with luminescence

Strap

Strap

  • Brown calfskin strap
  • Strap width 22 mm

The Big Pilot’s Watch Perpetual Calendar Spitfire Story

The bronze case, olive green dial and brown calfskin strap lend this complicated Pilot's Watch a unique character. Over time, the bronze develops an individual patina. With the help of a Pellaton winding system and two barrels, the IWC-manufactured 52615 calibre builds up a power reserve of seven days. The components in the Pellaton winding system exposed to unusually high stresses and strains are made of non-wearing ceramic. The perpetual calendar recognizes the different lengths of the months and leap years automatically and requires no correction until 2100. It can be set simply via the crown. The double moon display shows the moon correctly for both the northern and southern hemispheres and will need to be adjusted by one day only after 577.5 years.

Calibre Family 52000

The twin barrels are the trademark feature of the 52000-calibre family. They supply the watches with sufficient energy for a 7-day power reserve and drive energy-sapping complications like the annual calendar and perpetual calendar.

Perpetual calendar

The perpetual calendar is one of the most fascinating haute horlogerie complications. Originally developed by former chief designer Kurt Klaus and continuously improved since then, it is mechanically programmed for 577 years.

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