Features: - Water Resistant - Case / bezel material: Resin - Resin Band - LED light - Afterglow - Dual time Specifications: - 1/100-second stopwatch - Measuring capacity: 23:59'59.99'' - Measuring modes: Elapsed time, split time, 1st-2nd place times - Countdown timer - Input range: 1 minute to 24 hours (1-minute increments and 1-hour increments) - Unit: 1 second - Other: Auto repeat - Multi-function alarms - 5 independent multi-function alarms (4 one-time alarms and 1 snooze / one-time alarm) - Alarm type: Daily alarm, date alarm, 1-month alarm, monthly alarm - Hourly time signal - Full auto-calendar (to year 2099) - 12/24-hour format - Regular timekeeping: Hour, minute, second, pm, month, date, day - Accuracy: ±30 seconds per month - Approx. battery life: 10 years on CR2025 - Size of case:?41?×?34?×?10.5?mm - Total weight: 23.5 g - LED:Green