Timex on timegrapher?

[Lc130]

Hi All

Here's a beginner question:  an old Timex 29 movement looks to be spot on after 24 hours.  However,  it looks very erratic on the timegrapher with rate varying from + 60 to +330.  Amplitude varies as well.  I'm wondering if the timex design can be measured on a timegrapher at all??

Thank you

Charlie

 

Edited February 3, 2019 by Lc130

[JohnR725]

Any time you get random dots on the machine then the numbers are meaningless.

So I did an experiment for you same timing machine different Timex unfortunately I only have one Timex that's running. So initially it wouldn't even display unless I set the machine to 18,000 beats per hour watch. So occasionally something resembling a pattern of dots like in the image below or totally random dots and occasional the machine resets because it can't read it at all.

[Lc130]

Thank you John for taking the time. 

The Timex is keep great time after a clean and lube.  It appears to be one minute off after 30 hours.

 

Charlie

[rodabod]

Is it a lever escapement or a pin pallet?

[Lc130]

1 hour ago, rodabod said:

Is it a lever escapement or a pin pallet?

Pin pallet

[rodabod]

I think these machines were designed for jewelled levers, so that probably has something to do with it as the sounds produced are different. I've had some pin pallets that do measure reasonably ok on mine though (including Timex).