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7.75 x 9.25''', Dm=Do= 17.5 x 21.05mm
(rests on corners to fit cases for round 9.75''' movements)
f = 19800 A/h
Balance staff U1992
1.23 x 0.66 / 0.16mm
Comments about the data
17.5-1 : sub second, Incabloc
17.5-21: sweep second, Incabloc
17.5-3 : sub second, Shock Resist
17.5-23 : sweep second, Shock Resist
Example, year: signature; shock device
1948: 2013097, 17·5·1, Chs Tissot & Fils, Swiss, 15 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.
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