Do you mean an actual chronograph or an app that you can use alongside a chrono?
One of our resident geniuses creat d this if it helps.
https://easypoi.app/
Ahhh the old 'torque it till it strips, then back it off 1/4 turn' lol.
To be honest I've never stripped any mounts and the BKLs are usually very good. Have they changed the specs at all recently?