Casio 5078 User Manual page 40

Stopwatch
Measuring unit: 1/100 second
Measuring capacity: 59'59.99''
Measuring modes: Elapsed time, split time, two finishes
Alarm: 5 daily alarms (4 one-time alarms: 1 snooze alarm); Hourly Time Signal
Illumination: LED (light-emitting diode); selectable illumination duration
(approximately 1 second or 3 seconds)
Battery: Two silver oxide batteries (Type: SR726W)
Approximately 2 years on type SR726W (assuming alarm operation 20 seconds per
day and one illumination operation 1.5 seconds per day)
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