With its 10 Year Battery, the STR300 Runner Series is not only powerful; it´s eco-friendly also. This long-lasting power will translate in years of reliable training data. With a front-button activated 1/100th Second Stopwatch w/60-Lap memory, Pace Signal, Distance Calculation; you won´t want to leave on your next run without it. Features: - 5 bar water resistant - Long life battery - Great for runners - Easy-to-read display - Lightweight Specifications: Basic Information: - Case size (L× W× H): 48.2 × 35.2 × 12.1 mm - Weight: 30 g - Case and bezel material: Resin - Band: Resin Band - Water resistance: 50-metre water resistance - Power supply and battery life: Approx. battery life: 10 years on CR2025 Exterior: - Glass: Resin Glass / Spherical Glass Watch Features: - World time: Dual time Stopwatch: - Stopwatch: Time and distance measurements - Measuring unit: 1/100 (lower part of the display for first 60 minutes, centre part of the display for first 10 hours) or 1 second (lower part of the display after 60 minutes, centre part of the display after 10 hours); 0.1 miles or km - 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) Timer: - Countdown timer - Countdown range: 100 hours - Countdown start time setting range: 1 minute to 100 hours (1-minute increments and 1-hour increments) - Other: Auto-repeat Alarm/hourly time signal: - Daily alarms - 5 independent daily alarms (4 one-time alarms and 1 snooze/one-time alarm) - Hourly time signal - LED backlight: Auto light switch, afterglow - Calendar: Auto-calendar (to year 2039) - Accuracy: ±15 seconds per month - Other features: 12/24-hour format - Regular timekeeping: Hour, minute, second, pm, year, month, date, day