BREIL OS11 Mode D'emploi page 10

Chronograph reset [incl. after replacing battery]
This procedure should be performed when the chronograph 1/1 second hand does not
return to the 0 second position after the chronograph has been reset, and including after
the battery has been replaced.
A
1. Pull the crow out to the 2nd position.
2. Press button
The chronograph hands can be advanced rapidly by continuously pressing button
3. Once the hands have been zeroed, reset the time and return the crown to its normal
position.
* Do not return crown to normal position while chronograph second hand returns to
12:00 (ZERO) position. Each hand stops on the way when the crown is returned to
normal position and these positions are recognized as 12:00 (ZERO) position.
6
to set the center chronograph second hand to the 0 position.
A
.