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manual-wind chronograph, 60s, 30/45min, pillar wheel
14''', Dm= 31.3mm
f = 18000 A/h
power reserve 40h
Balance staff U1456 / U3468
balance with/without screws
Mainspring / battery
Zf1258, 1.50 x 13.0 x 0.15 x 395mm
1.82 x 1.18 / 0.28 x 0.25mm
Comments about the data
since 1936 with two pushers
option: Breguet hairspring
71: hour counter
Example, year: signature; shock device
ca. 1945: Eska Watch Co, Swiss, 17 Jewels (30min)
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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