Bulova 1925 6511

Submitted by TexasLady on October 9, 2018 - 7:27pm
Manufacture Year
Movement Model
Movement Jewels
Movement Serial No.
Case Serial No.
Case shape
Case Manufacturer
Additional Information

I believe this is a Bulova Princine Ladies watch.

The case is different from the other Princine's in the DB due to some engraving arches on the back of the case.

The case has the Case numbered beginning with a 1 however, the movement 6TA is from 1924 - 1929.


1921 Bulova watch
1921 Bulova watch
1921 Bulova watch
1921 Bulova watch
Posted October 9, 2018 - 9:56pm

Is there a date code on the movement. I suspect that the watch will be from 1925.

I'd say it's a Bulova 6511, despite the variation is jewel count (15 v 16).

We don't see to many adverts for 16 jewelled movements even though there were fairly common during this period.

Posted October 10, 2018 - 4:12pm

In reply to by mybulova_admin

There is no date code on the movement.


Can someone explain to me about the numbers and how they reflect the year.  I thought you dated the watch by the date code and the first number of the case number.

Kathy L.
Posted October 16, 2018 - 5:16pm

I would agree with 6511.  The added etching on the back is a nice touch.

Posted October 9, 2018 - 10:58pm

Dear TexasLady, your watchbis the 6511, I slightly different shape versus the regular tonneau shape of the Princine. It was sold exclusively with the 6TA and only in 1924. 

Posted October 10, 2018 - 9:54pm

In reply to by Alex

There is no evidence of this and it's very likely that a movement manufactured in 1924 (in Switzerland) would very well end up in a watch assembled in 1925 (in the US).

Posted October 10, 2018 - 3:57am

Then will be 1924 Bulova 6511

Geoff Baker
Posted October 10, 2018 - 6:24am

1924 Bulova 6511 

Kathy L.
Posted October 10, 2018 - 10:56am

1924 Bulova 6511

Reverend Rob
Posted October 10, 2018 - 11:30am

Bulova 6511 works for me as well. 6TA from the FHF 344 ebauche. 

Posted October 10, 2018 - 9:52pm

For the early 1923 to 1925 watches we have established that in most cases the 2nd number is the date code (not the first as with post 1924/25). We believe that 1925 was the year they cut over to the first digit indicator.

Prior to this most of pre 1924 Bulova watches have a case serial number staring with a '1', something we still don't fully understand. The weird thing is the cases predating '1' was actually '2' (used for 1917, 18 & 19).

Early case numbers arer still a bit of a mystery, but we have enough samples to at least say with a certain level of confidence that:

  • 1920 to 1923 - all seems to start with '1'
  • 1923 to 1925 - the second number determines the year
  • 1925 to 1949 - the first number determies the year

The subject watch having a second serial of '5' says to me it's an early 1925 Bulova 6511