A Superb Jaeger-LeCoultre Mark XI - British Royal Air Force Issued Watch with Original Lume, Military Pheon, and Service Engravings, 1948

The Jaeger-LeCoultre Mark 11 (6B/346) was introduced in 1948 as a military-issued navigation watch for the British Royal Air Force. Built to exacting specifications, it featured a highly legible black dial, hacking seconds, and anti-magnetic protection—essentials for precise navigation. Alongside IWC, JLC supplied these legendary tool watches, which became benchmarks of military timekeeping. With rugged design and impeccable accuracy, the Mark 11 cemented Jaeger-LeCoultre’s reputation as a trusted supplier to the British military.

What's on Offer

This Jaeger-LeCoultre Mark 11 (6B/346) is one of the most iconic military-issued watches of the 20th century, built to RAF specifications in 1948.

In superb condition, the matte black dial features crisp Arabic numerals, syringe hands, and original lume still present on both the hands and hour plots. The military pheon proudly sits beneath the JLC signature, while the caseback carries its original service engravings.

We have pared the watch with a period correct New Old Stock (NOS), Gay Frères Ladder Bracket similar to the original Bonklip ones supplied to the RAF.

Powered by the recently serviced, Calibre 488/S with hacking seconds, this historically important piece is a true asset to any military watch collection, and running extremely well having been serviced we will include a 12 moth warranty for your added peace of mind.