Timex Easy Trainer with HRM continuously tracks your heart rate during exercise. Easy to read display. Automatic activity timer records the elapsed workout time. Workout review recalls average, peak and minimum heart rate after workout. Chest sensor with removable elastic strap provides continuous heart rate. Watch Features: 12/24 hour time. Month/Date Water-resistant up to 30m. (HRM features not available underwater.) Time and date with Indiglo night-light.