MST 470,  471 
Ligne12''' 12'''
Cal. 471, 44 Jewel Cal. 471, 28 Jewel

Remarks: Along with the 436/437 the 470/471 was the pinnacle of MST movement design. The 470/1 revsion of the 436/7 was introduced in late 1966. All parts are fundamentally interchangeable (although in the case of the rotor bearing, 2 parts need to be changed together),the changes where; an increase in the size of the rotor bearing centre and a small revision to the cover of the automatic coupling clutch. Later on, the 470/1 was also available in a lower spec 28 jewel version and, in the final production around 1973 in minimal 17 jewel configuration. Fitted with a Micro regulator as standard. Jewels in the 44 jewel version were allocated as follows: Movement 19, automatic winding device 8 (hole jewels), coupling clutches (2x5) 10 ruby balls, and ball bearing for rotor 7 ruby balls.
 
Production period: 1966-1973

Jewels: 44 or 28
Beat: 21600
Winding: automatic
Manufacturer: MST
Hand sizes:
Hour:150
Minute: 90
Second: 20
  
Stem tap size: 90

Variant:
MST 470 12''' (26mm) direct sweep seconds
MST 471 12''' (26mm) direct sweep seconds, date

Common parts/Interchange
Balance Staff:
MST part number:7513,  interchanges with MST: 436, 437, 470, 471
Mainspring:
MST part number:1265 interchanges with MST: 436, 437, 470, 471
Strength: 0.10
Height: 1.40
Length: 290
Watches in my collection with the MST470:
Watches in my collection with the MST471:

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