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11.5''', Dm= 25.6mm, Do= 26.0mm
f = 18000 A/h
power reserve 33h
Balance staff U2130
Mainspring / battery
1.20 x 9.5 x 0.09mm
1.30 x 0.80 x 0.22mm
Comments about the data
detached manual wind
wheels beryllium bronze
The low quantity of movements from this family, compared with the pedecessors and succesors, indicate that they were produced hardly longer than one year. Dispite this two variants of the manual wind gear and two balances were produced in parallel, and one may believe that all was just an experiment.
425: 10.5''', manual wind
430: 10.5''', manual wind, gear like automatic
562: 11.5''', automatic
565: 11.5''', automatic, date
suffix /1: shorter balance staff
Example, year: signature; shock device
ca. 1955: F, Laco-Duromat, 25 Jewels - 5; 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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