Features: 10-YEAR BATTERY LIFE - 100-meter water resistance - LED backlight - Alarm - Interval timer - 9 preset timer Specifications: Resin Glass 100-meter water resistance Case / bezel material: Resin Resin Band LED backlight Afterglow World time 29 time zones (48 cities), city code display, daylight saving on/off Stopwatch: Add time timer for injury timeouts, etc. Measuring unit: 1 second (upper and lower display) Measuring capacities: Upper display: 59'59"; Lower display: 99'59" Measuring modes: Elapsed time, event timer Preset timer Measuring unit: 1 second Preset start times: 10, 12, 15, 20, 25, 30, 35, 40, 45 minutes Timer modes: Elapsed time, auto-repeat *Measurement of elapsed time for up to 60 minutes after the countdown reaches zero Timers Up to nine timers can be preset with separate starting times for timing of intervals. Measuring unit: 1 second Input range: 59'55. (5-second increment and 1-minute increments) Other: Auto-repeat Daily alarm Hourly time signal Full auto-calendar (to year 2099) 12/24-hour format Button operation tone on/off Regular timekeeping: Hour, minute, second, pm, month, date, day Accuracy: +-30 seconds per month Approx. battery life: 10 years on CR2025 Size of case:?45?×?42.1?×?12.5?mm Total weight: 40 g LED:Amber