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10.5''', Dm= 23.3mm
f = 18000 A/h
Balance staff U1556
Mainspring / battery
Zf1309, 1.60 x 9.0 x 0.10 x 290mm
1.45 x 0.75mm
Comments about the data
Movement catalogues list many variants of this Aurore-Villeret calibre: 160-164, 166, 168-170, 172-189. Differences aren't mentioned there, and illustrated is only the 232. Besides many bridge layouts, until now the only known difference is between the lever cock in most, and the rare lever bridge in the Ebel 99.
160-164, 166, 168-170, 172-189: sub second
171: sweep second
Example, year: signature; shock device
1947: old data sheet
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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