Bulova 1928 Roberta

5/10 votes
Model ID rating explained.
3
Manufacture Year: 
1928
Movement Model: 
5AP
Movement Jewels: 
15
Movement Serial No.: 
15329
Case Serial No.: 
8059366
Case shape: 
Oval
Case Manufacturer: 
Bulova
Additional Information: 

Bought this ladies model some considerable number of years ago and as I have a better camera today, I attach some images.  The watch back hinges and reveals a sealed tinted glass movement cover.  I have never removed that. It keeps pretty decent time and my Wife wears it occasionally.

I've not tried to find out much about it, but maybe this is the time . . .

 

Not For Sale
Bulova watch
Bulova watch
Bulova watch
Bulova Watch
Bulova Watch
bosartis15
Posted April 19, 2015 - 5:49am

I had forgotten we had this Bulova - it stays in my Wife's drawer.  Took it out today, took some pictures for the forum. Obviously a cocktail watch and in pretty decent condition, I remember I bought this at an auction many years ago as a birthday present.  Keeps pretty good time and always been fascinated by the internal glass movement cover and why it was so heavily tinted glass.

jabs
Posted April 19, 2015 - 9:29am

Panel Member

look as 1928 Roberta

bosartis15
Posted April 19, 2015 - 11:17am

Hey, thanks for the advertisement - it definitely seems to be the "Roberta".  So nice to have a model name.

1955mercury's picture
1955mercury
Posted April 19, 2015 - 10:38am

Hi Bosartis15. The cover you're referrring to is not actually glass. It's a very thin acrylic platic material. These turn a yellowish color from age. I love the filagre band on your watch. Those are becoming more valuable than the watches themselves.

bosartis15
Posted April 19, 2015 - 11:22am

The filigree bracelet is expandable though one segment has obviously been replaced or added at some time as it's almost the same but not quite.  But it connects and snaps on as it should.

Daca102090
Posted April 19, 2015 - 10:57am

The movement dust shield predates acrylic plastic by a few years.

This is actually nitro cellulose which is the same as film stock of the time.

You can tell that it is original as the ones made by/for Bulova have those circles in the center.

If these have been replaced then they won't have that circle and are probably plastic or vinyl.

1955mercury's picture
1955mercury
Posted April 19, 2015 - 11:00am

Good info Daca. I did not know that. I always assumed the circle was from a gear rubbing it.

bosartis15
Posted April 19, 2015 - 11:29am

Very interesting info and thanks.  I too thought the circles might be caused by rubbing, though I could not see how.  The fact it is not glass explains the yellowing and that it's also original gives me some satisfaction as it's always nice to have a model that's as it was when produced and in such good condition too.

William Smith's picture
William Smith
Posted April 20, 2015 - 1:23pm

Club 5000Panel Member

Yea the detail info for the two Bulova dust-tite cover patents specifies its cellulose...I'm pretty sure.

JP
Posted April 19, 2015 - 1:30pm

Panel Member

28 Roberta