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13''', Dm= 29.0mm, Do= 29.4mm
f = 18000 A/h
power reserve 39h
Balance staff U1409
Stem W2633(0.9mm), W920(1.2mm)
Mainspring / battery
Zf1250, 1.50 x 11.5 x 0.13 x 360mm
1.50 x 0.85mm
Comments about the data
differences not known between 1188, 1189
Example, year: signature; shock device
1-2) ca. 1950: Tärnan, Swiss, 15 Jewels - AS 1188; Incabloc
3) ca. 1955: Swiss, 17 Jewels; Incabloc
(Lubrifix combined settings for escapement wheel)
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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