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|ZentRa 6/70 (Helvetia 81)|
10.5''', Dm= 23.25mm, Do= 23.6mm
f = 18000 A/h
power reserve 34h
Balance staff U789
Mainspring / battery
Zf1211, 1.50 x 9.0 x 0.10 x 290mm
1.30 x 0.80 / 0.22mm
Comments about the data
attention: left handed ratchet-wheel screw
Example, year: signature; shock device
ca. 1935: H, D, ZentRa 6/70, Swiss Made, 15 Jewels, Patent Shock Absorber - 1239; Helvetia-Shock-Absorber
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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