Bulova 11 UOACB vs. AOACB. Need ot know if they use the same day wheel

Submitted by tmw57 on

Hi Everyone,

I'm looking for a  day wheel for my 819 Caravelle. The movement is labelled 11 UOACB. I found a day wheel for an 11 AOACB.    

Will this work? What is the difference between the two calibres?

 

thanks

GuyMontag
Posted December 23, 2024 - 8:54pm

The Caravelle 11UOACB is an AS2066 movement while the 11AOACB is a Bulova in house movement. The Day Wheel is not listed as being interchangeable between the two. I recently serviced my Caravelle 819 myself. Mine had black letters on a white background, maybe try searching for an AS2066 day wheel with those colors. 

tmw57
Posted December 24, 2024 - 2:26pm

In reply to by GuyMontag

Thanks. I have that same watch but would like a black day wheel..

Probably tough to find-

GuyMontag
Posted December 24, 2024 - 3:16pm

In reply to by tmw57

I just searched on ebay for: as2066 movement

and it came back with several that had a black day wheel.

tmw57
Posted December 26, 2024 - 2:41pm

In reply to by GuyMontag

Can you tell me which style of day wheel your 819 uses?  I found 2 different configurations of the AS 2066 day wheel..

 

thanks

GuyMontag
Posted December 26, 2024 - 11:27pm

In reply to by tmw57

This is mine. One thing to note, the day can be at 3 (or 9) o'clock or at 6 o'clock for the AS2066. You want the one at 3 o'clock.

 

tmw57
Posted December 27, 2024 - 8:13am

In reply to by GuyMontag

Great, thanks!  So the version with two holes as opposed to the six hole style...

GuyMontag
Posted December 27, 2024 - 3:42pm

In reply to by tmw57

I would think (?) that either would work if it is from a AS2066. Just make sure that the day text is horizontal on the wheel like in your photos and not vertical like in this example.

Muhammad556
Posted December 23, 2024 - 9:09pm

It's unlikely that the day wheel from the 11 AOACB will work with your 11 UOACB movement. The key difference lies in the specific design and compatibility of these calibers. While both are part of Bulova's caliber lineup, they may have different dimensions or mechanisms that affect how they interact with other parts of the watch!

JimDon5822
Posted January 14, 2025 - 1:05pm

Interesting that you date wheel is from a Caravelle 11OZCB.  You can look for a date wheel from that caliber also.