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Fig. 1

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Fig. 2

Dugena 1037 (Otero 792)

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

11.5''', Dm= 25.6mm, Do= 26.0mm
H= 5.55mm
F= 1.5mm
T= 2.2mm
25 jewels
f = 18000 A/h
power reserve 44h

Balance staff U2937

Stem W2601

Mainspring / battery
1.20 x 9.5 x 0.10mm

1.50 x 0.90 x 0.21mm

Comments about the data

excenter winding mechanism
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
ca. 1970: Patented, 25 Jewels; Incabloc
(Otero 794, 21600 A/h)

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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