- Case / bezel material: Resin - Resin Band - Mineral Glass - Shock Resistant - 200-meter water resistance - Electro-luminescent backlight Auto light switch, selectable illumination duration (3 seconds or 5 seconds), afterglow - Flash alert Flashes with buzzer that sounds for alarms, hourly time signal, countdown timer time up alarm, countdown timer progress beeper, and stopwatch auto start - Low temperature resistant (-20°C) - World time 29 time zones (48 cities), daylight saving on/off - Moon data (moon age of the input data, moon phase graph) - Tide graph (tide level for specific date and time) - 1/100-second stopwatch (ST1) Measuring capacity: 999:59'59.99'' Measuring modes: Elapsed time, split time, 1st-2nd place times Other: 5-second countdown auto start - 1/100-second stopwatch (ST2) Measuring capacity: 999:59'59.99'' Measuring modes: Elapsed time, split time, 1st-2nd place times - Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments) Others: Auto-repeat, progress beeper - 5 multi-function alarms (with 1 snooze 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: ±15 seconds per month - Approx. battery life: 2 years on CR2025 - Size of case : 52.4×50×17.7mm - Total weight : 68.2g