Fitness watch, Digital quartz movement, Positive (dark-on-light) display, AT (Anaerobic Threshold) Heart Rate calculation function, Auto-HRM function, Measurement condition checking function, Heart rate graph, Target zone function, Estimate of marathon finish time, Log data function (recall of heart rate and running data), Dual time function, 1/100-second digital chronograph with available 300-lap memory, Interval timer with double repeat, Alarm mode, EL (electroluminescent) backlight, Digital day-and-date display, Digital grey dial with grey faceplate, Ventilated matte fuchsia polyurethane strap with large matte fuchsia plastic buckle, Glossy fuchsia plastic oval case, Matte black plastic selector buttons, Stainless steel screw-in caseback, Acrylic lens, 5 ATM (50 meters/165 feet water resistant) **Included: black wireless ECG sensor belt with embossed white logo, instructional DVD