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electronically controlled tuning fork
day: set by changing 18-24h
electrical hack feature
12.5''', Dm=Do= 28.75mm
f = 360Hz
Stem Bulova 2180
Mainspring / battery
343 (original, mercury), 344 (replacement, silver odixe)
1.40 x 0.85 x 0.18mm
Comments about the data
218, 2180: no date
2183: only hour, minute
2185: date, 24h dual time
2186: digital display (direct read)
suffix F: electrical hack feature
suffix G: electrical and mechanical hack feature
Example, year: signature; shock device
1973: N3, Bulova Swiss
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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