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View picture in original size
Fig. 1

View picture in original size
Fig. 2

Förster 500

Features
manual wind
sweep second

Data
10.5''', Dm= 23.3mm, Do= 23.7mm
H= 4.75mm
F= 1.35mm
T= 2.15mm
17 jewels
f = 18000 A/h
power-reserve 38h

Balance staff U2034

Stem W346 / W1114
(L= 12.5 / 14.0mm)

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
like Förster 50, but crown mechanism with rocker bar
crown wheel without function

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, set-lever spring new:
186: manual wind, date
191: automatic, date

Example, year: signature; shock device
ca. 1955: U, 17 Jewels; Kif-Protechoc

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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