Hello,

can anybody help me with that information?

On www.ranfft.de I have found this information for a lot of movements except the 146HP. Here is a ranfft example for Valjoux 72: http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&&2uswk&Valjoux_72

Thanks and regards

 

Just measure the sweep seconds pinion. It's also a bit more complicated than that because you need to know the tube depth, and that varies by dial configuration not just movement.

If you're looking for a replacement seconds hand... Good luck! Replacement hands can be extremely difficult to order correctly (even if you have a source for the correct parts).

 

Yes, I am looking for this information regarding a Zenith A3736.

So at the end, I need the tube depth and the tube diameter...

 

You have the watch I presume? Measure it directly with a caliper.

Or hire your friendly watchmaker.