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7.25''', Dm= 16.2mm, Do= 16.5mm
f = 18000 A/h
Balance staff U2439
Mainspring / battery
1.10 x 6.0 x 0.06mm
1.20 x 0.65 x 0.18mm
Comments about the data
detached manual wind
260: manual wind
261: manual wind, stronger mainspring
Example, year: signature; shock device
ca. 1955: Laco, 25 Jewels; Duro-Swing
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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