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AS 1749

 
AS 1749 |

AS 1749

Description

In the 1960ies, AS experimented to find out if a winding mechanism, winding in both directions is better, than a winding mechanism, winding only in one direction. For this, in that movement, the winding mechanism was an exchangeable module, located between “6” and “7”.

In the movement shown here, a caliber 1749, which extended the base caliber AS 1748 by a date mechanism, the winding module for only one direction was built in and so the movement winds only conterclockwise.

Technical data

Manufacturer:AS
Caliber:1749
Size:11 1/2'''
A/h:18000
lift angle:52°
Number of jewels:25
Escapement:Pallet lever
Balance types:Nickel anular balance
Shock protection(s):Incabloc
Balance bearing / direction hairspring:Clockwise
Moveable stud:yes
Adjust mechanism:Hairspring key
Features:
  • SCD (direct center seconds)
  • QG (date indication (aperture))
  • AUT (selfwinding)
References:Flume: K3 184
Mentioning in literature (years):1967 - 1968
Hint: The jewel count, the types of balances used, and the shock protections employed refer only to the specimens held in the archive and are therefore not relevant for the precise identification of the movement.

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