Civilian (1950s)
Mark XI 6B/346 — Civilian (1950s)
c. 1950–c. 1959
Civilian watches from the 1950s showing neither IWC case numbers nor military markings; IWC has never commented on them.
At least 7,400 IWC watches for the RAF; IWC records identify more than 8,000 military movement numbers, with about 600 more thought to await confirmation (Horological Journal 2004).
No verified image of this watch yet
Identifying details
No named details recorded yet.
Variants of 6B/346
Reference overview →| Variant | Production |
|---|---|
| RAF, White 12 Dial | 1949–1952 |
| RAF, Triangle Dial Without T | 1952–1963 |
| RAF, Encircled T Dial | 1963–? |
| RAF, Encircled T Dial · Encircled T, Hooked 7 | Undated |
Case & movement
- Reference
- 6B/346
- Production
- c. 1950–c. 1959
- Case material
- Stainless steel
- Case diameter
- 36 mm
- Crystal
- Acrylic, held by a screwed retaining ring
- Movement
- Manual winding
- Date
- No
- Caliber
- IWC 89
Dial, bezel & hands
Unknown attributes are left out rather than guessed.
Movement
IWC 89
Albert Pellaton’s hand-wound centre-seconds calibre with indirect seconds drive and a Breguet hairspring. The Mark XI version stops the seconds for synchronisation. Early batches had no shock protection; later ones were fitted with Incabloc.
Manual winding · Introduced 1946 · 18,000 vph · 17 jewels