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quartz controlled stepper motor
5.75 x 6.75''', Dm= 13.0 x 15.15mm
f = 32768 Hz
Stem ESA 978.001
Mainspring / battery
1.00 x 0.55mm
Comments about the data
differences not known between 978.001, 978.002
Example, year: signature; shock device
ca. 1990: Orfina, Swiss V8, 6 Jewels
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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