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|Dugena 987 (Aurore-Villeret 423)|
10.5''', Dm= 23.3mm, Do= 23.7mm
H= 2.8 mm
f = 18000 A/h
power reserve 42h
Balance staff U2420
Mainspring / battery
1.10 x 9.0 x 0.10mm
1.30 x 0.70mm
Comments about the data
later samples with varying combined setting for escapement wheel, and/or mobile stud carrier (Fig.3)
differences not known between 423-427
Example, year: signature; shock device
1-2) ca. 1955: - ; Incabloc
3-4) ca. 1965: Swiss Made, 17 Jewels; Incabloc
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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