Accurist 6W50 Operating Instructions Manual page 28

To set the time:
1. Gently pull out crown to position C.
The second hand will return to the 12 o'clock position and stop automatically. If
not, then press the TR Button, each press will advance it by 1 second.
2. Turn crown either way to correct time.
3. Push in crown to position A.
4. For rapid adjustment through time zone.
Pull crown out to position C; rotate the crown quickly.
The hands will start to rotate automatically.
5. To stop hands, move crown slowly.
6. Time can be adjusted either forwards or backwards.