Specification:

The Analog digital watch has a ​1⁄100 second  with a count up to 59:59.99 (nearly one hour). The stop watch also has the feature to mark net and split time (lap). Other features include an hourly time beep (hourly chime) and a single daily alarm lasting 20 seconds and an automatic calendar, although auto-adjustment for  is not supported as the watch does not record the year. February is always counted as 28 days. The watch uses a faint, green  backlight located to the left of the display for illumination (in earlier versions it was an amber microlight). According to manufacturer estimates, the watch is reported to be accurate to ±30 seconds per month.
The  movement is powered by a single 3-volt  button cell, which lasts at least seven years, assuming 20 seconds of alarm and one second of light usage per day. However, these are seldom used in practice, so it is not uncommon for the battery to last 10 years or longer.