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|Eterna 1551 (ETA-ESA 9164) |
electronically controlled tuning fork
electrical hack feature
13''', Dm= 29.0mm, Do= 29.4mm
f = 300Hz
Stem ESA 9162
Mainspring / battery
343 (original, mercury), 344 (replacement, silver odixe)
1.50 x 0.90 x 0.25mm
Comments about the data
1551: day, date
Example, year: signature; shock device
1970: 7058237, ESA 9164, 22, 22 Y2, Eterna Sonic 1551, Lic. Bulova & Pat. ESA Swiss, 12 Jewels
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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