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Fig. 1

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Fig. 2

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Fig. 3

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Fig. 4

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Fig. 5

Dugena 1042 (Otero 782)

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

11.5''', Dm= 25.6mm, Do= 25.9mm
H= 5.8mm
(rotor bearing +0.1mm)
F= 1.5mm
T= 2.2mm
25 jewels
f = 18000 A/h
power reserve 44h

Balance staff U2546

Stem W2601

Mainspring / battery
1.20 x 9.5 x 0.10mm

1.40 x 0.80 x 0.20mm

Comments about the data

jewel-bearing rotor
sophisticated excenter self-winding mechanism with just one gear stage (Fig.4)
easy to operate rotor lock (Fig.5)
fixed mainspring, friction clutch on pawl wheel
From the generations of the equivalent Otero family single calibes or small families were adopted, meeting the temporary demand. This occasionally lead to various Dugena designations for the same Otero calibre.

old balance, big hand-gear bridge
1039: -
1042: date
new balance, small hand-gear bridge, new automatic
1038: -
1043: date
1036: new rotor bearing
1037: date, new rotor bearing

Example, year: signature; shock device
1-3) ca. 1960: Otero 782, Dugena 1042, 25 Jewels; Monorex
4-5) ca. 1960: -8, Helbros Watch Co., Germany, 7 Jewels; Monorex
(Otero 78)

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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