IWC Mark XI pilots watch from the British R.A.F.

The Mark XI was developed for the British Royal Air Force. Renowned for its precision and durability, this model features a clean, highly legible dial with luminous markers and hands, designed for optimal readability in any condition. Housed in a robust stainless steel case, it is powered by the legendary IWC Caliber 89, celebrated for its reliability and technical excellence. A rare find for collectors, this incredibly well preserved Mark XI offers a blend of military history and timeless design.