Watch Stopage When Hands Instaled

i have a 23 movement that has been torn down cleaned and oiled. It runs great but as soon as I put the dial and hands on it starts and stops. Could this be a week mainspring? Any ideas would help PLEASE!!!

Gerard

FifthAvenueRestorations's picture
FifthAvenueRest...
Posted April 28, 2013 - 2:59pm

check the cannon pinion and (4th?) wheel, the movement may be running but not carrying the Hands.

personal experience.

....unless You see the movement phyisically stop?

Gerard
Posted April 28, 2013 - 3:38pm

Yes I can see it stop, it will run for a bit then stop but only when the hands are put on.

Thank You

Gerard

FifthAvenueRestorations's picture
FifthAvenueRest...
Posted April 28, 2013 - 4:47pm

would have to be a binding issue Gerard..... one for the Pro's, which I am not.

Gerard
Posted April 28, 2013 - 4:49pm

Thank you

Gerard

Reverend Rob's picture
Reverend Rob
Posted April 29, 2013 - 10:30am

Panel Member

Binding hands is a common problem, they can bind with each other, or they can bind with the dial if it is not centred perfectly over the holes. The small sub second hand can bind in its hole as well, and may even be tipped and be touching the dial unnoticed. The minute hand can also touch the crystal and stop the watch. 

When installing hands, it is best to then turn them with the crown throughout a 12 hour cycle, to see that they do not touch each other.  Also, do not forget the dial washer, that shiny curved bit of brass foil that keeps the hour wheel against the dialside. Without it, the hour wheel will disengage with the minute wheel, and possibly jam or fall and wobble.  Handsetting is a curious skill that comes with practise, and on these old watches the hands have been pulled many times. You can use hand held hand pushers, or a pusher jig with three pushers in a vertical frame. You can get these from O.Frei. 

Hope this helps.