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|Bulova 7AK (ETA 735)|
7.75 x 11''', Dm= 17.55 x 25.0mm
Do= 17.55 x 25.4mm
(cover plate +0.8mm)
f = 18000 A/h
power reserve 47h
Balance staff U1784
Mainspring / battery
Zf873, 1.30 x 10.0 x 0.11 x 320mm
1.25 x 0.60 / 0.22mm
Comments about the data
option: cover plate and raised hands for strongly curved dial (cf. Bulova 7AP)
only partially based on ETA 735
differences not known between 7AA, 7AH, 7AK
Example, year: signature; shock device
1947: 47, Bulova Watch Co, U.S.A, 21 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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