Case / bezel material: Resin / Stainless steelCase / bezel material: Resin / AluminumResin BandResin Glass50-meter water resistanceLED light Auto light switch, afterglowDual timeStopwatch: Time and distance measurements Measuring unit: 1/100 (lower part of the display for first 60 minutes, center part of the display for first 10 hours) or 1 second (lower part of the display after 60 minutes, center part of the display after 10 hours); 0.1 miles or km *Changeover between centimeters (km) and miles (mi). Measuring capacity: 99:59'59"; 99.9 miles or km; 999.9 miles or km (total distance covered) Measuring modes: Elapsed time, lap/split times Memory capacity: Up to 61 records (used by lap/split time records and log title screens); total distance covered Basic data input: Stride length 40 to 190 cm (16 to 76 inch) *Changeover between centimeters (cm) and inch (in). Others: Pacer signal; lap/split number (from 01 to 99); Best lap time screenCountdown timer Measuring unit: 1 second Countdown range: 100 hours Countdown start time setting range: 1 minute to 100 hours (1-minute increments and 1-hours increments) Other: Auto-repeatDaily alarms 5 independent daily alarms (4 one-time alarms and 1 snooze/one time alarm)Hourly time signalFull auto-calendar (to year 2039)12/24-hour formatRegular timekeeping: Hour, minute, second, pm, year, month, date, dayAccuracy: ±30 seconds per monthApprox. battery life: 10 years on CR2025 
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