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View picture in original size
Fig. 1

View picture in original size
Fig. 2

Bulova 17AH (ETA 951, 953)

Features
stem wind and set
sub second

Data
17''', Dm= 37.9mm, Do= 38.6mm
H= 3.95mm
F= 1.6mm
T= 2.25mm
15/17 jewels
f = 18000 A/h
power reserve 37h

Balance staff Ronda 439

Stem W1500

Mainspring / battery
Zf2793, 1.20 x 15.0 x 0.19 x 430mm

Hands
2.00 x 1.00 / 0.28mm

Comments about the data

Remarks
1935-1953
open face calibre
Breguet hairspring
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.

family:
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
(Bulova 17AHS)

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 21.2 © 11-02-14, mtr-Ranfft


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