Multifunction watch with pulse rate monitor, chronograph, countdown timer, and alarm 1-second resolution countdown timer with working range 1 minute to 19 hours 59 minutes Measures pulse rate in beats per minute with touch of finger Pulse rate monitor features "Safety Range" and "Warning Sound" 1/100-second chronograph with split function up to 100 hours Time of day with calendar Daily alarm and hourly chime Backlight for night time or low light use Water resistant up to 50 meters. Instructions included. Wt. 1 lb.