Housed in an impact-resistant ABS case this stopwatch is easy to use for timing single events. � 1/100 second (for first 30 minutes) and 1 second thereafter. � Calendar and time (12/24-hr format). � Daily Alarm. � Hourly chime. � Water and shock-resistant structure. � Case size: 72 x 64 x 20mm. � Supplied with neck cord and battery. ATP.