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|Bifora 8.75''' (Felsa 107)|
8.75''', Dm= 19.45mm, Do= 19.75mm
f = 18000 A/h
power reserve 33h
Balance staff U36
Mainspring / battery
Zf662, 1.20 x 7.5 x 0.09 x 220mm
1.20 x 0.70 / 0.20mm
Comments about the data
bimetallic screw balance
transition from old Felsa 107 (without set-lever spring) to the new (big crown-wheel bearing)
The escape-wheel cap jewel was probably added by Bifora.
Example, year: signature; shock device
ca. 1925: -
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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