Longines Tutorials

Calendar

https://youtube.com/watch?v=XH91Yv-umGw

Chronograph

https://youtube.com/watch?v=rvg7D8lOaZI

3 Hands Date

https://youtube.com/watch?v=j9PkdOhmUCU

Moonphase

https://youtube.com/watch?v=ig5MLnPxr0w