Bulova 11 ANACB question

[southwesttimers]

I have a Bulova 11 ANACB movement that runs great, but the hands do not move. Looking at the tech sheet for this model it does not have a traditional cannon pinion like most watches. I see a drive wheel with what appears to be a cannon pinion attached. Is this the part that needs to be tightened?

[WatchMaker]

In short ... yes.

I have located this document for you which may be of use: http://www.phfactor.net/wtf/Bulova and Caravelle/Bulova 11ANAC, D, B.pdf. The part reference in this document you're interested in is '4 F'. Read for instance the 'Train side' instructions on page 3 which refers to it.

[rogart63]

You can tighten it but seldom will it work any good. Best is to find a new 4F part. Did i say i hate this parts. Probably works when it's new but after some years it's always worn and can't be repaired. Thank god that some manufactures use a normal cannon pinion. 

[southwesttimers]

Thanks for your responses. I removed the cannon pinion and used a smooth broach and a pair of finger nail clippers to tighten as suggested. In addition I lubricated the cannon pinion prior to staking it back onto the driving wheel. Yes, this movement has a Achilles heel with this design, but now its runs great and the hands work beautifully. BTW, good luck finding a 4F part for this caliber movement. 

Again, thanks for all the help.