With its 10 year battery life, the STR300 Runner series is not only powerful, it is eco-friendly as well. This long lasting power will translate into years of reliable training data. With a front-button activated 1/100th second stopwatch with 60-lap memory, pace signal, and distance calculation, you won't want to leave on your next run without it.

• 50m water-resistance
• Countdown timer
• 5 alarms
• Pace signal
• 1/100 second stopwatch
• Dual time
• Auto-calendar
• 12/24-hour formats
• Lap 60
• 10 year battery life
• Auto LED backlight with afterglow