AS 1187

AS 1187 | - The Movement Archive

AS 1187


The AS 1187 is an old movement can be seen as the precessor of several modern movements, such as the caliber 1686.

Since it offers a directly driven center second hand and uses a large minute wheel, it had to be constructed in two layers, resulting in a large height.

With its screw balance, secured in an Incabloc-Shock protection system, with its large regulator arm and the yoke winding system on the dial side, it was a classically made movement.

AS 1187: AS 1187 Zifferblattseite

AS 1187 Zifferblattseite

Technical data

Size:10 1/2'''
lift angle:52.23°
Number of jewels:7/15
Escapement:Pallet lever
Balance types: Nickel screw balance
Shock protection(s): Incabloc
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 7

Usage gallery

AS 1187: Musette Resist HAU

Musette Resist HAU