Case / Bezel Material: Stainless Steel / Aluminum Band Stainless Steel Band One-Touch 3-Fold Clasp Water Resistance 100-Meter Water Resistance Power Supply And Battery Life Approx. Battery Life: 10 Years On Cr2025 Exteriorclose Glass Mineral Glass Watch Featuresclose World Time World Time 29 Time Zones (30 Cities), Daylight Saving On/Off Stopwatch 1/100-Second Stopwatch Measuring Capacity: 23: 59' 59.99'' Measuring Modes: Elapsed Time, Split Time, 1St-2Nd Place Times Timer 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) Alarm/Hourly Time Signal Daily Alarms 3 Independent Daily Alarms (2 One-Time Alarms And 1 Snooze Alarm) Hourly Time Signal Calendar Full Auto-Calendar (To Year 2099) Other Features Telememo Others: Remaining Memory Screen, Auto-Sort 12/24-Hour Format Regular Timekeeping: Analog: 2 Hands (Hour, Minute; Hands Move Every 20 Seconds) Digital: Hour, Minute, Second, Am/Pm, Month, Date, Day