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|Dugena 1057 (Förster 191)|
date: set by +/-24h
11.5''', Dm= 25.6mm, Do= 26.0mm
f = 18000 A/h
Balance staff U2034
Mainspring / battery
1.45 x 9.0 x 0.10mm
1.50 x 0.90 x 0.22mm
Comments about the data
detached manual wind
On the predecessor with two date jumpers the date can be advanced by setting the hands back and forth between 20:30 and 24h. Here the hands must be set 24 hours to change the date. Hard to understand, since the single date jumper was easy to design for the quicker date setting.
1053: automatic, date
budget version with rocker-bar winding:
1055: automatic, date
1110: manual wind, 10.5'''
date simplified, set-lever spring new:
1057: automatic, date
1171: manual wind, date
Example, year: signature; shock device
ca. 1960: F, FB, 25 Jewels; Elastor-Förster
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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