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8 x 9''', Dm= 18.5 x 20.8mm
f = 18000 A/h
power reserve 40h
Balance staff U543
Mainspring / battery
Zf851, 1.30 x 8.5 x 0.10 x 250mm
1.50 x 0.90 x 0.20mm
Comments about the data
option Incastar regulator:
The only large-scale produced regulator featuring a free oscillating hairspring. The end of the spring is fixed between two rollers, adjusting actually its length (photos at the bottom). No isochronism error by the gap between the regulator pins.
differences not known between 1090, 1091, 1190, 1191
Example, year: signature; shock device
ca. 1945: Ernest Borel, 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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