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|Alpina 420 (Perfecta 19''')|
stem wind and set
19''', Dm= 42.0mm
f = 18000 A/h
power reserve 32h
Balance staff U309
1.90 x 1.30 / 0.30mm
Comments about the data
open-face- or hunter calibre
bimetallic screw balance with 4 adjustment screws
Example, year: signature; shock device
ca. 1920: UH (Union Horlogere) - 1893 9
(Perfecta 19''', hunter)
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.
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