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Fig. 1

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Fig. 2

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Fig. 3

Bulova 10BOAC

sweep second

10.5''', Dm= 23.3mm, Do= 23.7mm
H= 5.85mm
F= 1.4mm
T= 1.7mm
23/30 jewels
f = 18000 A/h
power reserve 41h

Balance staff U2479

Stem W2774

1.40 x 0.85 x 0.18mm

Comments about the data


10.5''', Bulova shock protection:
10BOAC: automatic, sweep second
10.5''', Kif-Flector:
10BNCH: manual wind, sweep second, hack feature
10BNCHR: same, further details uncertain
10BP: manual wind, sub second
10BPA: automatic, sub second
10BPAC: automatic, sweep second
10BPAD: automatic, sub second, date
10CBACD: automatic, sweep second, day, date pointer
11.5''', Kif-Flector:
11AC: manual wind, sub second
11ACA: automatic, sub second
11ACC: automatic, sweep second
11ACC: manual wind, sweep second
Likely not all feasable variants were actually were produced. Here only actually existing are listed, probably not all.

Example, year: signature; shock device
1954: L4, Bulova Watch Co U.S.A., 10BOAC, 6 Adjustments, 23 Jewels; Bulova

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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