AHS 152

AHS 152
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.

dial side view
dial side view

Technical data

ManufacturerAHS
Caliber152
Number of jewels17
EscapementAnchor with pallets
BalanceNickel screw balance
Shock protection(s)Rufarex
Balance cock directionclockwise
Hairspring studfixed
Regulator typeLong regulator arm
Movement constructionFork
Escapement wheel, Fourth wheel, Third wheel, Center wheel, Mainspring barrel
Center second pinion
FeaturesSCI
FunctionsHour, minute, second
Beats per hour18000
Size11'''
Image in Flume Werksucher 1958 b.36
Factsheet

Usage gallery