10A movement

I am looking for a 10A movement or a balance complete with hairspring and prefferably still attached to the balance cock although the balance cock is not absolutly necessary but the balance with hairspring must be good with a good staff.

I will trade for it or pay cash through paypal or by check.

Gerard
Posted September 15, 2012 - 4:34pm

I have a 10AX if that will work.

Gerard

Reverend Rob's picture
Reverend Rob
Posted September 15, 2012 - 6:56pm

Panel Member

As near as I can determine, the 10A and 10AK might use the same balance. Bestfit doesn't list the 10A balance reference number, but the 10AK is an 800. It looks like a common enough balance among the 10 ligne A types, although there are notable exceptions. 

JP
Posted September 15, 2012 - 7:18pm

Panel Member

Thanks Gerard but I will need a 10AK.

JP
Posted September 15, 2012 - 7:19pm

Panel Member

Reverand thanks for the info, I will look for some one with a 10AK.

Reverend Rob's picture
Reverend Rob
Posted September 15, 2012 - 7:21pm

Panel Member

Oooops, that's a typo on my part, I meant to say 10AX. the 10 AX is the one I was talking about. However, the 10AK uses the same balance. 

mybulova_admin
Posted September 15, 2012 - 7:28pm

Club 5000Panel Member

Can you confirm that the 10AX and 10AK are compatible. I didn't think they were. Excellent if they are as 10AKs are easy to find.

FifthAvenueRestorations's picture
FifthAvenueRest...
Posted September 15, 2012 - 9:47pm

Not that I could see admin.

The staff is the interchangeable between the 10 AI and the 10 AN

Nothing showing on the 10 A other than it's a FF-Robert ?

not a watchmaker

 

DreamWeaver
Posted September 15, 2012 - 10:17pm

10AK and 10AX are completely different balances - NOT interchangeable. 

JP
Posted September 15, 2012 - 10:23pm

Panel Member

So is either compatable with the 10A?

DreamWeaver
Posted September 15, 2012 - 10:30pm

I doubt it...but I don't know. The Reverend Rob might know. There's no interchanganility inofrmation for 10A and 10P as far as I know. I think they might take the same balance...but again I don't know for certain. I do know the 10AX fits a 10AN and 10AE but whether it fits a 10A? I don't know. 

JP
Posted September 15, 2012 - 10:35pm

Panel Member

If there is a differrence it will be in the balance cock as one has three pin alignment and the others have a wider spaced two pin alignment.

Rob, what say you??

mybulova_admin
Posted September 16, 2012 - 6:55am

Club 5000Panel Member

For whats its worth the 10AA is compatible with the 10AN.

bobbee's picture
bobbee
Posted September 16, 2012 - 7:17am

You could try looking at Ranfft's movements under Bulova 10, and compare each 10 ligne model photo to your 10A, as this movement no.  is not mentioned here or on Ranfft, but you should find one of the archive mvmnts will match it.

FifthAvenueRestorations's picture
FifthAvenueRest...
Posted September 16, 2012 - 8:25am

The image below is from a vintage parts Cabinet, the 9 and 10 linge drawer.

Not that it tells Me a thing, I just enjoy posting pictures.

: )

It shows 2 sets of parts for the 'Model A' which tells Me the Bulova A Movement was manufactured in both 9 and 10 linges.

Jules Borel has the most extensive searchable online cross reference database for Movements I have ever seen, it's quite something.

Borel shows the 10 A but only cross references the mainspring and 2 'other' parts - nothing on the balance.

bobbee's picture
bobbee
Posted September 16, 2012 - 8:34am

It is LIGNE not LINGE, Mark. 

Pronounced  "LEAN-YUH".

Reverend Rob's picture
Reverend Rob
Posted September 16, 2012 - 4:20pm

Panel Member

Sorry, not having a good day apparently. 10AX is what you want, the 10AK is different. Sometimes running my finger across the chart it tends to wander. 

And with another look, I see I was guessing at the 10AX being the same balance, I think the likelihood is good, but I can't confirm it. The FHF Robert and several other 10''' movts are all closely related, and I have swapped parts between them before. There is even some design duplication with certain AS movts of the same time, when they were all becoming part of ESA, what was to become ETA. 10P is a different animal altogether, coming from LePhare. 

jared.riffe
Posted September 17, 2012 - 7:47pm

I have a 10A somewhere I'll dig it out and check the balance. 10A is much older than 10AX if I recall correctly.

Reverend Rob's picture
Reverend Rob
Posted September 17, 2012 - 7:56pm

Panel Member

No help from Bestfit on this one, maybe someobody has a Bulova interchange book?

JP
Posted September 17, 2012 - 7:59pm

Panel Member

I have one but the 10A is not listed. I am going to try my Quick Fit Materials catalog to see if they show the FHF Robert and if so will it intrchange with the 10A.

jared.riffe
Posted September 19, 2012 - 7:29pm

MY bestfit lists 10A as FF Robert along with 10 AA, 10 AI, and 10AAI

10AN, 10AX, and 10AE are FF 324

10AP and 10P as mentioned before are Le Phare

 

Although 10A and 10AX are both from FONT, they are different Calibres. Also there are seperated by about 10 yrs give or take as far as when they were manufactured.

jared.riffe
Posted September 18, 2012 - 11:59am

 

 

jared.riffe
Posted September 18, 2012 - 12:00pm

FifthAvenueRestorations's picture
FifthAvenueRest...
Posted September 18, 2012 - 7:24pm

aside and possibly a good topic to open up for discussion to those interested - is the 9 and 10 A the first 'fully jeweled' Gents wristwatch Movement produced by Bulova Watch Co?

Do We see any hallmarks on these early Movements other than Bulova Watch Co, such as Bulova W. Co?

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William Smith
Posted September 19, 2012 - 5:33am

Club 5000Panel Member

Well the 1921 date and 17 jewel count on this BBI is pretty early and Bulova W. Co.  Not seeing 9 and/or 10A much earlier.

EDIT:  Now I see your asking "By Bulova Watch Co."  so disregard above.

JP
Posted September 18, 2012 - 10:40pm

Panel Member

One of mine has a crucifix shape with the numbers 51482 below the crucifix. The crucifix is like those worn by the nuns in catholic school. Don't know if that means anything but it is only on one of the 10A movements.

FifthAvenueRestorations's picture
FifthAvenueRest...
Posted September 19, 2012 - 5:16am

John,

Can You get a picture?

Is the movement signed Bulova Watch Co. or Bulova W. Co?

jared.riffe
Posted September 19, 2012 - 7:28pm

The 10AA has a pentagon with a 5 in it under the balance wheel. The 10A has the same shaped pentagon with a 1 in it.

JP
Posted September 19, 2012 - 8:05pm

Panel Member

Both of mine say Bulova Watch Co. and have a serial number.

Janet
Posted November 30, 2012 - 8:19am

I also have 2 womens watches that I shall put on the site and the 10A movements both have Bulova Watch Co and also have serial numbers.   One has what looks like a C stamped into it also ????