Features: resin case resin band shock resistant mineral glass electro-luminescent backlight afterglow flash alert 1/100-second stopwatch countdown timer auto-repeat multi-function alarm hourly time signal full auto-calendar(to year 2039) 12/24-hour format regular timekeeping accuracy +/-15 seconds per month approx.Battery life 2 years on cr2016 200 meter water resistance size of case/total weight 53.2 x 50 x 16.3 mm/67g