It is a handheld timepiece designed to measure the amount of time elapsed from a particular time when it is activated to the time when the piece is deactivated.
They are specifically used when time periods must be measured precisely and with a minimum of complications.
It consists of a timer with a pendant cord, showing normal time in hours, minutes and seconds.
A calendar with the days, dates and months is displayed.
There is start/stop and reset button.
It comes with an alarm.
It has a robust plastic casing and is operated with the button cell battery.
Measuring Range=23 hours, 59 minutes, 59 seconds.
Accuracy=1/100th second.
It is useful for recording cumulative, dual time and lap time measurements.