Movement No. J250
Checking the rapid ascent
warning alarm tone
![](./../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/2023/09/j250_wa_01.png)
![](./../wp-content/uploads/2022/08/bg_howto.png)
2
Press and release the lower-left
button to display the maximum
depth.
![](./../wp-content/uploads/2023/09/j250_wa_02.png)
![](./../wp-content/uploads/2022/08/bg_howto.png)
3
While the maximum depth is
displayed, you can check the
alarm tone by pressing and
releasing the upper-left button.
![](./../wp-content/uploads/2023/09/j250_wa_03.png)