Technical Specs:

• Shock Resistant
• 100M Water Resistant
• Electro-luminescent(EL) backlight Afterglow
• Memory Function:
  Memory capacity: Up to 25 sets of data, each set including:
  Name (8 characters) and telephone number (12 digits)
  Other: Auto-sort
• Day Counter
  Automatically counts down the days from the current date to a target date.
  Memory capacity: 5 records (8 characters of text)
  A mark appears on the display to let you know when a target date is reached.
• 1/100-second stopwatch
  Measuring capacity: 23:59'59.99''
  Measuring mode: Elapsed time, split time, 1st-2nd place times
• Dual time
• Daily alarms
• 5 independent daily alarms
• Hourly time signal 
• Auto-calendar (to year 2039)
• 12/24-hour formats
• Regular timekeeping: Hour, minutes, seconds, am/pm, month, date, day, daylight saving on/off
• Accuracy: ±15 seconds per month
• Stainless steel back
• Approx. battery life: 2 years on CR1616