Some specifications for this reference are on file; the record is incomplete.
IWC · Pilot's Watches
Pilot's Watch Mark XX
Ref. 6B/346
Also written: Mark XI
discontinuedMilitary Mark XIPartially documentedEvidenceProbableLast reviewed Not yet reviewed
Reference photography not yet on file
The RAF-issued Mark XI (1948) established the IWC pilot's-watch line — antimagnetic, hacking, and highly legible. The 'Mark' designation continues through XII–XVIII to the modern Mark XX.
At a glance
- Brand
- IWC
- Collection
- Pilot's Watches
- Reference
- 6B/346
- Production
- 1948–1984
- Caliber
- 89
- Case diameter
- 36mm
- Case material
- Stainless steel
Related references
Reference family timeline
Every generation in this lineage in production order. Spans are as documented; an open end means the reference is current or its end year is not established.