Movement No.B620
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/2022/11/img_chrono_1_r.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/2022/11/img_chrono_2_r.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/2022/11/img_chrono_3_r.png)