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|Bulova 17AH (ETA 951, 953)|
stem wind and set
17''', Dm= 37.9mm, Do= 38.6mm
f = 18000 A/h
power reserve 37h
Balance staff Ronda 439
Mainspring / battery
Zf2793, 1.20 x 15.0 x 0.19 x 430mm
2.00 x 1.00 / 0.28mm
Comments about the data
open face calibre
back side plane or with bevelled edge
Usually the ETA 953 is recorded as base. Thus the signature on the example movement indicates that the ETA 951 is the Bulova variant of the ETA 953.
17AH: Breguet hairspring
17AL: flat hairspring
suffix S: Glycidur balance
Example, year: signature; shock device
1959: L9, BXW, 951, Bulova Watch Co, 17AHS, Swiss, 17 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.
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