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Bulova 1957 Bulova 23 "A"

6/10 votes
Model ID rating explained.
3

Variant: 

A

Manufacture Year: 

1957

Movement Model: 

10BPAC

Movement Jewels: 

23

Movement Serial No.: 

-

Case Serial No.: 

6271952

Case shape: 

Round

Case Manufacturer: 

Bulova

Crystal Details: 

26.3mm

Gender: 

Mens
Not For Sale
1957 Bulova 23 A watch
1957 Bulova watch
neetstuf-4-u's picture
neetstuf-4-u
Panel Member
Posted April 23, 2019 - 9:37am

1957 Bulova 23 "A"

gmmy775's picture
gmmy775
Posted April 23, 2019 - 9:47am

This one is in stainless.  I wish the previous owner had not polished the back to smithereens.  it is amazingly accurate.  I also have a similar '54 in  chromed base metal, the movements are a thing of beauty

Reverend Rob's picture
Reverend Rob
Panel Member
Posted April 24, 2019 - 10:16am

These are good quality movements, not COSC, which would be 5 positions, but very few were at the time. During the late 50's and early 60's, watch testing for chronometer status was carried out by the Bureau Officiels de contrôle de la marche des montres and the mean daily rate limit was -1/+10, compared with today's -4/+6. (This must be achieved with a narrow delta in five positions) COSC was established in 1973. 

In 1957, a watch like this only lacked the certificate to be called a Chronometer. The definition at the time was:

a chronometer [was] a precision watch, which [was] regulated in several positions and at different temperatures and which had received a certificate [from the (“B.O.)]."

These were definitely not run of the mill watches, and in-house, USA made, to boot. 

1957 Bulova 23 'A'.

 

Andersok's picture
Andersok
Panel Member
Posted April 23, 2019 - 12:42pm

Bulova 23 'A' seems appropriate

jabs
Panel Member
Posted April 23, 2019 - 1:42pm

1957 Bulova 23 "A"

gmmy775's picture
gmmy775
Posted April 23, 2019 - 4:33pm

Hi Reverend Bob

That is very illuminating info.  This particular watch is perhaps as accurate as any I own.  not sure how many of these movements I have, but a few.  the 6 adjustments has always appealed to me.  This one is more dead-on than (dare I utter it) my Omegas.  My first love is American movements, but I'm not over the top with that

Geoff Baker
Club 5000Panel Member
Posted April 24, 2019 - 8:20am

Very nice, a classic piece.....

1957 Bulova 23 A

Reverend Rob's picture
Reverend Rob
Panel Member
Posted April 24, 2019 - 10:18am

This is one of the few Bulovas that lists the six adjustments they are referring to right on the movement:

Heat, Cold & Isochronism, and three positions.

Kathy L.'s picture
Kathy L.
Panel Member
Posted April 24, 2019 - 10:39am

1957 Bulova 23 "A"

Reverend Rob's picture
Reverend Rob
Panel Member
Posted April 24, 2019 - 1:39pm

Here's a 1955 example I hadn't seen before, they proudly put it on the dial: