MST 478 
Ligne11.5'''

Remarks: This is an ETA calibre (ETA 2638) used in the Mustang range - due to the lack of an in-house Day/Date automatic. Superseded by the MST479 (also ETA) and then the in-house MST523 Calibre.
 
Production period: 1968-1973 (est)

Jewels: 23
Beat: 21600
Winding: automatic
Manufacturer: Other/Ebauche
Hand sizes:
  

Variant:
MST 478 11.5''' (26.6mm) quickset date, day

Common parts/Interchange
Watches in my collection with the MST478:

All text and images are either © Kris Bubendorfer 2011-15 or © Roamer Watch Company.