Timex Men's T49852 Expedition Rugged Digital Vibration Alarm Green/Black Resin Strap Watch Imported Indiglo night-light 100-hour chronograph with lap and split option, hydration alarm, 24-hour countdown timer Dual mode alarm offers vibration and audible alert with 3 alarms (daily/weekday/weekend/weekly with 5 minute back up) Occasion mode : 15 preset occasions to set reminders for birthdays, anniversaries, holidays and appointments Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving