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|Certina 28 351 (ETA-ESA 9154)|
electronically controlled balance motor
date: set by changing 23-24h
12.5''', Dm= 28.0mm
f = 28800 A/h
Stem ESA 9154
Mainspring / battery
343 (original, mercury), 344 (replacement, silver odixe)
1.50 x 0.90 x 0.22mm
Comments about the data
28-353: date, circadian rhythm
Example, year: signature; shock device
ca. 1970: Lic ATO, Buttes Watch Co, Swiss, 13 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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