FT40 Heartrate Monitor by Polar Grey men's heart rate monitor watch with several innovative training features Displays heart rate as percentage of maximum, bpm, and within target zone indicator Audible and visual target zone alarms; 12/24-hour clock with day/week indicator Polar OwnCal mode tracks energy expenditure for single and accumulated workouts Offers EnergyPointer and ZonePointer modes; water-resistant to 30 meters; 2-year warranty