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Fig. 2

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Fig. 3

Dugena 1053 (Förster 81)

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

11.5''', Dm= 25.6mm, Do= 26.0mm
H= 6.55mm
F= 1.5mm
T= 2.3mm
25 jewels
f = 18000 A/h
power-reserve 38h

Balance staff U2034

Stem W2358

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

1052: automatic
1053: automatic, date
budget version with rocker-bar winding:
1051: automatic
unimportant modifications:
1054: automatic
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. 1955: FB 91, Dugena 1055, 25 Jewels; Kif-Protechoc
(Dugena 1055, Förster 91)

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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