Hanhart COMPACT 2 Bedienungsanleitung Seite 6

2. Pre-setting of hours:
Keep button SET depressed and, simultaneously, activate the button
HR. Digits are changing by each pressure and signalized by an
acoustic beep. By keeping the button HR depressed, digits are
moving faster without acoustic signal.
3. Pre-setting of minutes:
Same operation as before, but by pressure of button MIN.
4. Pre-setting of seconds:
Keep button SET depressed and, simultaneously, activate button SEC.
Seconds are reset to zero, but if more than 30 seconds were
previously displayed, the figure of minutes will be raised by one
additional minute.