AS 1749

AS 1749 | - The Movement Archive

AS 1749


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

Size:11 1/2'''
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
  • SCD (direct center seconds)
  • QG (date indication (aperture))
  • AUT (selfwinding)
References: Flume: K3 184
Mentioning in literature (years): 1967 - 1968