AS 1240

AS 1240 | - The Movement Archive

AS 1240


The AS 1240, probably made in the late 1940ies was a very nice ladies` watch movement, which already had the ultra modern center second indication.

The center second is directly driven in the two-storeyed construction. This is not only technically interesting (for example because of the very long axle of the anchor wheel), but also visually very appealing because of the nicely top plate with its strips and its angled edges.

AS 1240: escapement wheel axle

escapement wheel axle

The nickel screw balance is secured by a two-thigh shock protection system, maybe of the type Monorex. This is an indication for its old age, too.

AS 1240: AS 1240 dial side

AS 1240 dial side

Technical data

Size:8 3/4'''
lift angle:52.23°
Number of jewels:15
Escapement:Pallet lever
Balance types: Nickel screw balance
Shock protection(s): Monorex?
Balance bearing / direction hairspring:Counterclockwise
Moveable stud:no
Adjust mechanism:Long regulator arm
  • lever
  • escape wheel, seconds wheel, third wheel
  • center minute wheel
  • mainspring barrel
  • SCD (direct center seconds)
References: Flume: 1952 2

Usage gallery

AS 1240: Arctos Elite ladies' watch

Arctos Elite ladies' watch