PU vs PD vs other positions

[LittleWatchShop]

Hamilton Cal 64 movement.  The watch seems to gain time in all positions except PD.  I show a comparison of PU and PD but other positions are very close to PU trace.

The regulator pin wrt the center of the balance is a line more or less parallel to the pendant.  I think that is telling, but telling what?

[JohnR725]

then in the various timing positions are you seeing changes in amplitude?

 

[LittleWatchShop]

1 minute ago, JohnR725 said:

then in the various timing positions are you seeing changes in amplitude?

 

I will check

PU +14  208
PD -31   234
DU +9    230
DD +12   247

[JohnR725]

37 minutes ago, LittleWatchShop said:

PU +14  208
PD -31   234
DU +9    230
DD +12   247

I'm assuming the graphical display looks fine for all of these no random dots or things to interfere? What's interesting is his pendant down is actually higher than dial up which is typically not a good thing. It's why the ends of the balance pivots are supposed to be slightly flat because of the round agenda put too much amplitude but typically in the pendant positions you will always drop amplitude and if you end up with a dial position less than a pendant position I'm always suspicious of something isn't right

not that on some of the high grade watches you can sometimes see their amplitudes are really really close spread like they spent a lot of time with balance jewel design and shape of the pivots to do that but still almost always see a bigger drop in the pendant/crown positions and dial up and down

of the other thing is it just leave it in one position and you watch it you see the numbers slowly going up and down or do they stay relatively constant?

[LittleWatchShop]

2 minutes ago, JohnR725 said:

of the other thing is it just leave it in one position and you watch it you see the numbers slowly going up and down or do they stay relatively constant?

I will check

+/-5 degrees approximately

[JohnR725]

looking at the graphical display again looks like the blue line as a little more irregularities than the other? You might just touch a little more lubrication on the other pallet stone sometimes a pallet stone lubrication issue was show up like this. Sometimes you have stuff like this it also screws up timekeeping. Just depends on how bad it is

so we had up with several things pivots were pivot issues anything related that would affect the pivots like to dial-up and dial down not being the same as an issue.

Poise of the balance although typically on modern balances there pretty closely poised but that will give you a poising air

if you want to get obsessed and looking for other things you should read the manual at the link below I would attach it but it's really big file size was better to give you a link. There are some positions of a watch where the escapement will change things. Conceivably when you have changes you'll have amplitude issues and depending upon the spacing of your regulator pins it will translate into timing issues.

this is where you looking for a poising issue you'd want to drop the amplitude down much lower than things like poising issues become much more dramatic on the other hand escapement issues will also become more dramatic

http://www.historictimekeepers.com/documents/Micromat.pdf

 

[LittleWatchShop]

Great manual.  I wonder about the pallet fork.  It seems to have more "shake" in it than I would expect, but it is a totally subjective observation--not enough experience to intuit this. 

I put a dot of oil on the end of each pallet stone.  Will let it run awhile and I will check it later.

[Ronp]

See also https://adjustingvintagewatches.com/what-is-watch-adjusting/

 

Alos some nice remarks on this site on PU and PD issues and corrective actions.