AHS 152

 
AHS 152 | 17jewels.info - The Movement Archive

AHS 152

Description

The manufactury AHS (Alfred Hirsch, Schwenningen, Germany) was famous for mass production of simple pin lever movements. The caliber 152 described here, was made in the fifties and was a very nice exception, since it was a true pallet anchor lever movement.

Although it uses a service unfriendly pier construction with one single plate and on the dial side only a rocking bar winding mechanism and a simple flat click spring, it is equipped with a screw balance with regulator arm and a block for the indirectly driven center second hand. The balance runs in two trishock-like shock protection systems.

AHS 152: dial side

dial side


Technical data

Manufacturer:AHS
Caliber:152
Size:11'''
A/h:18000
Number of jewels:17
Escapement:Pallet lever
Balance types: Nickel screw balance
Shock protection(s): Rufarex
Balance bearing / direction hairspring:Clockwise
Moveable stud:no
Adjust mechanism:Long regulator arm
Construction:
  • lever
  • escape wheel, seconds wheel, third wheel, center minute wheel, mainspring barrel
  • center second pinion
Features:
  • SCI (indirect center seconds)
References: Flume: 1958 b.36

Usage gallery

AHS 152: Selecta de Luxe mens' watch

Selecta de Luxe mens' watch