I presume the watch is based on Poljot Shturmanskie (obviously unbranded) with Cal.3133 movement.
This terrible edit of my watch shows how the functions work.
In real life, the chronograph is started and stopped with the top pusher above the crown, then reset with the bottom pusher.
Perhaps this can barely be considered an "issue" at all, but the pilot's chonograph is incorrectly implemented:
-Ingame the large, red chronograph seconds hand should be pointing at 12'o clock position when not in use
-Actual running seconds hand is located in 9'o clock subdial, currently has no function at all.
-Small chronograph minutes counter should be pointing at 30 minutes when not in use (as it is now).
-The above WIP picture shows a correct "idle" state of the watch, only the small seconds hand should be moving.
I do not know if the implementation of the chronograph is feasible, but maybe the seconds hand should be corrected from large chronograph hand to the actual one, as it is in real life.