Small second hand won't stop while setting time.

[raptor2355]

I have just received a used 1973 omaga seamaster chronograph (blue). Seems to run very well. After winding I pulled out the crown to set the hands and I noticed the small second hand was still running. I thought that everything stops when the crown in pulled out all the way. should I be concerned about that.

 

[YY77]

raptor2355

I have just received a used 1973 omaga seamaster chronograph (blue). Seems to run very well. After winding I pulled out the crown to set the hands and I noticed the small second hand was still running. I thought that everything stops when the crown in pulled out all the way. should I be concerned about that.

Are you sure the movement hacks? A Zenith El Primero, Omega cal. 321, cal 861 and cal 1861 don't for example.

 

[Deafboy]

What you are referring to is called a hacking function. Assuming your watch has the cal. 1040 movement, then there isn't a hacking function.

ST 176.007

 

[raptor2355]

Yes! This is my watch! Do I have a 1040 movement? I assume then that the small second hand will continue to run.

 

[jsducote]

Often, a little back-pressure while setting the time will freeze the running seconds if you need to set it with that precision.