Movement No. B612
To use the chronograph
![](./../wp-content/uploads/2023/04/video-2.png)
![](./../wp-content/uploads/2023/04/video-2.png)
![](./../wp-content/uploads/2023/04/video-2.png)
View in illustrations
![](./../wp-content/uploads/2023/03/tri_m-1-300x69-1.png)
1
Check that the crown
is fully pushed in.
![](./../wp-content/uploads/2023/06/b612_chrono_01.png)
![](./../wp-content/uploads/2022/11/1-tri.png)
2
Press and release the
upper-right button to
start/stop the chronograph.
![](./../wp-content/uploads/2023/06/b612_chrono_02.png)
![](./../wp-content/uploads/2022/11/1-tri.png)
3
Pressing and releasing the
lower-right button while the
chronograph is stopped will
reset the chronograph.
![](./../wp-content/uploads/2023/06/b612_chrono_03.png)