Case / bezel material: Resin Resin Band Resin Glass / Spherical Glass 100-meter water resistance LED backlight Selectable illumination duration (1.5 seconds or 3 seconds), afterglow Dual time Daylight saving on/off 1/100-second stopwatch Measuring capacity: 00'00''00~59'59''99 (for the first 60 minutes) 1:00'00~99:59'59 (after 60 minutes) Measuring unit: lap time (1/100 second (for the first 60 minutes), 1 second (after 60 minutes)) split time (1/100 second (for the first 10 hours), 1 second (after 10 hours)) Measuring modes: Elapsed time, lap/split times, 1st-2nd place times Memory capacity: Up to 60 records (measurement start month, date, day, lap/split 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) Other: Auto-repeat 3 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, am/pm, month, date, day Accuracy: ±30 seconds per month Approx. battery life: 10 years on CR2025 Size of case / Total weight Size of case : 48.3×42.6×12.7mm Total weight : 38g What's in the box Watch, Manual and Warranty