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|Dugena 997 (Helvetia 831)|
11.5''', Dm= 25.6mm, Do= 26.0mm
f = 18000 A/h
power reserve 46h
Balance staff U2672
Mainspring / battery
Zf963, 1.35 x 10.0 x 0.12 x 290mm
1.35 x 0.90 x 0.28mm
Comments about the data
Girocap combined settings for escapement wheel
Example, year: signature; shock device
ca. 1965: Dugena 997, Helvetia 831, Swiss Made, 17 Jewels - 3683; 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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