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 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.table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }