The minutes are expressed with four vibrations, three of short and one long. The placement of the long vibration signals the minutes. The minutes are followed by a long pause and then vibrations of equal length, one for each hour. So if the time is 3:45, it's signaled as follows: short, short, short, long, pause. one, two, three. THE MINUTES ARE AS FOLLOWS: XX:00 : long, short, short, short; XX:15 : short, long, short, short; XX:30 : short, short, long, short; XX:45 : short, short, short, long. The hours are based on a 12-hour clock. The current version of the watchface starts at 8:00 am and ends at midnight.