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|Junghans 640.03 (ETA 2510)|
7.75''', Dm= 17.2mm, Do= 17.5mm
f = 18000 A/h
power reserve 44h
Balance staff U2526
Mainspring / battery
Zf656, 1.20 x 7.5 x 0.085 x 230mm
1.20 x 0.60mm
Comments about the data
indirectly driven minute allows a very big balance
early samples with cap jewel plate, late with Girocap combined setting for escapement wheel
Example, year: signature; shock device
ca. 1965: XI, 79X, Swiss - Patented; Incabloc
(ETA 2512, 21600A/h)
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.
|bidfun-db 21.3 © 02-08-15, mtr-Ranfft|
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