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View picture in original size
Fig. 1

View picture in original size
Fig. 2

Dugena 1153 (Osco 100)

manual wind
sub second

10.5''', Dm= 23.3mm, Do= 23.7mm
H= 4.5mm
F= 0.9mm
T= 2.2mm
15 jewels
f = 18000 A/h
power reserve 36h

Balance staff U2300

Stem W2439

Mainspring / battery
Zf1348, 1.65 x 9.0 x 0.10 x 290mm

1.40 x 0.80 / 0.16mm

Comments about the data

ratchet on dial side, crown mechanism with rocker bar

no threads for retaining screws
1153: 15 jewels
1153/7: 7 jewels
with threads for retaining screws
1154: 15 jewels
1156: 15 jewels, no second, date

Example, year: signature; shock device
ca. 1955: - OS, 100, I 3; Rufarex
(Osco 100)

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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