AHS 40

 
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AHS 40

Description

The AHS caliber 40 is a simple, 10 12 ligne pin lever movement, made in Germany in the 1950ies. It was available in different versions, among them the one displayed here with a pointed staff and double plate.

There’s no shock protection and also no jewels in the movement; the gears run in brass bearings, probably a preparation for other calibers, which were partially equipped with rubies.

On the dial side, there’s of course only a simple rocking bar winding mechanism and only a spring for the winding mechanism. This spring had to be replaced on the movement displayed here. Fortunately, it was compatible with other movements of AHS.

The movement displays hour and minute, and there’s also a sub-second indication at position “6”.

AHS 40 dial side view

AHS 40 dial side view


Technical data

Manufacturer:AHS
Caliber:40
Escapement:Pin lever
Balance types: Nickel anular balance
Shock protection(s): none
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
Features:s
Functions:hour, minute, decentral second
A/h:18000
Size:10 1/2'''
Literature: Flume: 1962 26

Usage gallery

Selecta de Luxe ladies' watch

Selecta de Luxe ladies' watch