Shock Resistant 200 Meter Water Resistant EL Backlight with Afterglow Multi-function Alarm Flash Alert 1/100 second stopwatch Countdown Timer Auto-repeat function Hourly Time Signal Daily Alarm World Time 29 times zones (48 cities) Scratch Resistant Mineral Glass Full Auto Calendar (pre-programmed until the year 2039) 12/24 Hour Formats Accuracy +/- 15 seconds per month Approx. battery life 2 years Casio Resin Strap Module 3160 Case Diameter 47mm Case Thickness 13mm Weight 50.5 g