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11.5''', Dm= Do= 25.55mm
mounting frame with 3 spring arms D= 28.4mm
f = 18000 A/h
Balance staff U2541
W2588 (L= 11mm)
W2589 (L= 12mm)
W2590 (L= 14mm)
Mainspring / battery
2.90 x 9.0 x 0.09mm
1.66 x 1.08 x 0.22mm
Comments about the data
ratchet on dial side, crown mechanism with rocker bar
156: sub second
156(SC): sweep second
156(SC,CLD): sweep second, date
Example, year: signature; shock device
ca. 1955: D 156
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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