IWC Mark XI Steel, matte black dial
IWC, 1948–1953
Why It Matters
Developed for the Royal Air Force, the Mark XI used a hand-wound caliber 89 with protection against magnetic fields. IWC dates the start of production to 1948 and supply to RAF personnel to November 1949. The 6B/346 designation identifies its British service reference.
Object Details
- Brand
- IWC
- Family
- Pilot
- Model
- Mark XI
- Reference
- 6B/346
- Production
- 1948–1953
- Case
- 36mm
- Material
- Stainless steel; antimagnetic soft-iron inner Faraday cage
- Movement
- Manual Cal. 89, hacking seconds, Breguet hairspring
- Dial
- Matte black, triangle at 12, paddle hour hand
- Provenance
- Model developed for the RAF; IWC records delivery to airborne personnel by November 1949
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