Förster 80

Förster 80
Förster 80

Description

1954, Förster launched their first selfwinding movement, Cal. 80. The 11 1/2 ligne movement uses a center rotor, which winds the movement in both direction over a rocker mechanism with a long idle running (almost 90 degrees). It uses a center second and a screw balance, which runs in a Kif-Trior shock protection system.

This movement uses the traditional clutch mechanism for setting the time. Due to cost saving reasons, only one year later, the successor, Cal. 800, was launched, which used a cheaper rocker mechanism.

Technical data

ManufacturerFörster
Caliber80
Number of jewels25
EscapementAnchor with pallets
BalanceNickel screw balance
Shock protection(s)KIF Trior
Balance cock directioncounterclockwise
Hairspring studmoveable
Regulator typeHairspring key
FeaturesSCD,AUT
FunctionsHour, minute, second, selfwinding
Beats per hour18000
Size111/2'''
Production time1954-1955
Image in Flume Werksucher 1957 55
Factsheet

Usage gallery

Foresta Automatic