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|Dugena 1021 (Helvetia 837)|
11.5''', Dm= 25.95mm, Do= 26.3mm
rotor diameter 26.8mm
f = 18000 A/h
power reserve 43h
Balance staff U1933
Mainspring / battery
Zf1043, 1.40 x 9.5 x 0.11 x 320mm
1.35 x 0.90 x 0.28mm
Comments about the data
attention: manual winding counterclockwise
An intermediate wheel B between directly driven sweep second C and 4th wheel A makes space for a higher barrel.
996 : manual wind
1022: automatic, rotor lock redesigned
train, automatic, and barrel new:
1025: automatic, date
Example, year: signature; shock device
ca. 1950: Helvetia, Dugena, Automatic, 1021, Swiss Made, 25 Jewels - 2981; Incabloc
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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