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01405 IWC. A 1951 historic stainless steel navigator’s wrist watch, Mark XI, housing the chronometer-grade manual-wound caliber 89 movement with central seconds. Sold




01405 International Watch Company

The IWC Mark XI, pilot’s watch is an iconic watch that has influenced the design of countless other timepieces. Manufactured for military purposes, the functionality was the primary concern of this model, and the resulting watch ended up as an all-time classic.


Manufacturer: International Watch Company
Model: Mark XI
Year: 1951
Reference No: 2612
Movement No: 1.811.472
Case No: R.N.Z.A.F 146
Material: Stainless steel
Calibre: Manual, caliber 89
Bracelet/Strap: Leather
Dimensions: 36mm diameter
Signed: Case, dial and movement signed
Accessories: Accompanied by an Extract from the Archives confirming that the watch was delivered to the Royal New Zealand Air Force.



The Swiss Manufacture IWC Schafffhausen has been producing timepieces of lasting value since 1868. The Mark XI entered military service in 1949, issued to pilots in the Royal Air Force, Royal Australian Air Force, Royal New Zealand Air Force and was decommissioned in the early 1980’s. It served as the debut for the legendary manually wound caliber 89 created by Albert Pellaton. Caliber 89 is considered to be one of the most robust and reliable manually wound movements of all time.

To meet the requirements for anti-magnetism, IWC encased the movement in a soft iron covering underneath the screwed case. Issued to the Royal New Zealand Air Force the present Mark XI pilot’s watch, with fixed spring bars, luminous dial and hands and hacking seconds, is a robust navigation machine and adorable, both for its versatility and as an important horological innovation. Besides its rich history, the Mark XI with a 36mm case diameter, is a great all-around watch with excellent style, and wears beautifully on a ladies wrist too.