IWC Pilot's Watch Mark XI

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Pilot's watch IWC Mark XI

The Mark XI is a pilot's watch by IWC.

The legendary aviator wristwatch Mark XI by IWC may rightly be called a "cult watch". It was produced in the period from 1948 until the early eighties. Each watch was checked on its accuracy in a 44-day test program at temperatures between minus five and plus 46 degrees Celsius and at five positions.

Not only the pilots of the Air Force, but also civilian airline pilots were familiar with this timepiece. When the Royal Air Force began with the exemption of the Mark XI in the mid eighties, one could still acquire it at 100 to 200 dollars. Today it is a coveted collector's item, which is traded at about several thousand dollars and, unfortunately, is difficult to obtain.


Manual winding calibre IWC 89


Stainless steel, satinated
Ø 36 mm
Soft iron inner case for magnetic field protection
Screw-down caseback in stainless steel
Acrylic glass


Black with luminous indexes (triangle at 12 o'clock)
White numerals
Steel hours and minutes hand, coated with luminous color
White seconds hand


Hours, minutes, central seconds with hacking seconds


Metal bracelet "BonClip"


  • Die Pilot's watches von IWC; Authors: Christian Pfeiffer-Belli, Rüdiger Bucher; ISBN 3871880701 (engl. version ISBN 387188068X )
  • IWC-Uhren. Die "Schaffhauser" und ihre Geschichte; Author: Reinhard Meis; ISBN 3853782531
  • IWC, International Watch Co. Schaffhausen, Engl. ed.; Authors: Hans-F. Tölke, Jürgen King; ISBN 3906500152
  • Die Grande Complication von IWC; Author:Manfred Fritz von Edition Stemmle, Kilchb.; ISBN 3908162076
  • Armbanduhren-Spezial: IWC - Geschichte, Design, Technik; Author: Jörg M. Mehltretter; ISBN 3898800458
  • IWC - Die Noblen aus der Schweiz. Handbuch für den Uhrensammler; Author: Jörg M. Mehltretter; ISBN 3898802272
  • IWC, International Watch Co. Schaffhausen, Luxusausg. Engl. Ed.; Authors: Hans-F. Tölke, Jürgen King ISBN 3906500160
  • Die Fliegeruhren von IWC. Deutsche Ausgabe - version IWC; Authors: Rüdiger Bucher, Christian Pfeiffer-Belli; ISBN 387188071X