Features: case/bezel material resin/stainless steel resin band mineral glass shock resistant mud resistant electro-luminescent backlight flash alert low temperature resistant (-20°c) world time 29 time zones 1/100-second stopwatch multi-function alarms hourly time signal full auto-calendar (to year 2099) 12/24-hour format button operation tone on/off regular timekeeping accuracy ±15 seconds per month 200m water resistance size of case: 45 × 16.3 mm