Longines 19.79

[smcchr00]

Good afternoon all, 

I have a vintage Longines pocket watch with the 19.79 movement, which I'm having trouble locating any information on really. I'm trying to find the lift angle for proper timing. Is anyone familiar with this movement?

[watchweasol]

According to the list,      longines 19 has a lift angle of 50.  the 19.79  is not listed on its own.                            cheers

[smcchr00]

1 hour ago, watchweasol said:

According to the list,      longines 19 has a lift angle of 50.  the 19.79  is not listed on its own.                            cheers

Ah, I see. I was thinking 19 was something unique. That makes sense. Thanks for the reply!

[JohnR725]

You only need the lift angle for amplitude measurement.

The video at the link below will explain how to figure out a lift angle if you don't Have one who

 

https://youtu.be/-Xgcck692js

[rodabod]

The first two digits on an older Longines caliber usually indicates the size in lignes. Hence the common wrist watch size of 12 lignes - cal. 12.68.