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AS 1951 (ST)

 
AS 1951 (ST) |

AS 1951 (ST)

Description

The AS 1951 (ST) is identical to the AS/Standard 1941 (ST).

Visually, this movement is no longer a highlight, just as all other movements of the seventies, but technically it is (except the fragile date mechanism which makes every watchmaker sweat due to flying clicks and springs) very robust and reliable - just like you`re used to from AS.

AS 1951 (ST): dial side view with visible date indication mechanism

dial side view with visible date indication mechanism

AS 1951 (ST): AS 1951 (ST): Dial side

AS 1951 (ST): Dial side

Technical data

Manufacturer:AS
Caliber:1951 (ST)
Caliber base:AS 1940
Size:11 1/2'''
Height:4,50mm
A/h:21600
Number of jewels:17
Escapement:Pallet lever
Balance types: Nickel anular balance
Shock protection(s): Incabloc
Balance bearing / direction hairspring:Clockwise
Moveable stud:yes
Adjust mechanism:Hairspring key
Construction:
  • lever
  • escape wheel, seconds wheel, third wheel, large driving wheel
  • mainspring barrel
Features:
  • SCD (direct center seconds)
  • QG (date indication (aperture))
  • RDR (date corrector)
References: Flume: K3 36
Documentation (years): 1976

Usage gallery

AS 1951 (ST): Rigi mens' watch

Rigi mens' watch


Related Movements

  • AS 1940 (ST) : 21.600 A/h, 10 1/2 ligne diameter
  • AS 1941 (ST) : date indication, countersunk in plate
  • AS 1950 (ST) : larger base plate with 11 1/2 lignes diameter, no date indication
  • AS 1951 (ST) : date indication, countersunk in plate

Other movements from AS