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|Dugena 3912 (Unitas 6431)|
stem wind and set
18.5''', Dm= 41.0mm, Do= 41.7mm
(winding gear +0.1mm)
f = 18000 A/h
power reserve 41h
Balance staff U3222
Mainspring / battery
Zf3502, 2.00 x 16.5 x 0.20 x 475mm
2.00 x 1.15 / 0.28mm
Comments about the data
open face calibre
Example, year: signature; shock device
ca. 1960: UT 6431, 6445, Swiss, 17 Jewels; 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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