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View picture in original size
Fig. 1

Förster 86

Features
manual wind
sweep second
date: set by changing 20:30-24h

Data
11.5''', Dm= 25.6mm, Do= 26.0mm
H= 4.7mm
F= 1.5mm
T= 2.3mm
17/21 jewels
f = 18000 A/h
power-reserve 38h

Balance staff U2034

Stem W2358

Mainspring / battery
Zf1221, 1.50 x 9.0 x 0.11 x 260mm

Hands
1.50 x 0.90 x 0.22mm

Comments about the data

Remarks

family/generations:
50: manual wind, 10.5'''
80: automatic
81: automatic, date
85: manual wind, date
budget version with rocker-bar winding:
500: manual wind, 10.5'''
800: automatic
unimportant modifications:
51: manual wind, 10.5'''
86: manual wind, date
90: automatic
91: automatic, date
date simplified, rotor and set-lever spring new:
186: manual wind, date
190: automatic
191: automatic, date

Example, year: signature; shock device
ca. 1960: 17 Jewels; Elastor-Förster
(Förster 51, 10.5''')

© U. Klenk

Not for Sale!
The movements presented in this caliber finder are not for sale. This is only a data sheet for identification and evaluation of the movement calibre, as well as for approximate dating.

bidfun-db 21.3 © 02-08-15, mtr-Ranfft


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