• 10 Year Battery Life
• Shock Resistant
• 200M Water Resistant
• Auto EL Backlight with Afterglow 
• E-Data Memory
  Memory capacity: Up to 40 sets of data (when there are 7 characters per record)
  Actual number of records depends on number of characters per record
  Password protected
• World Time
  29 time zones (27 cities), city code display, daylight saving on/off
• 4 Daily Alarms & 1 Snooze Alarm
• Countdown Timer
  Measuring unit: 1 second
  Countdown range: 1 minute to 24 hours
  Auto-repeat Function
• 1/100 second stopwatch 
  Measuring capacity: 23:59’59.99”
  Measuring modes: Elapsed time, split time, 1st-2nd place times   
• Hourly Time Signal 
• Auto Calendar (pre-programmed until the year 2039) 
• 12/24 Hour Formats 
• Accuracy: +/-15 seconds per month 
• Battery CR2025
• Approx. battery life: 10 years
• Module 2821

Size of case/total weight
G7100 57.4 x 45.0 x 17.3mm / 71g
G7100D 54.8 x 45.0 x 17.0mm / 137g