Features: resin case red resin band shock resistant auto el backlight with afterglow flash alert large buttons display format tide moon data technical specs low temperature resistant lcd (-20 c / -4 f) tide graph (tide level for specific date and time) moon data (moon age of the input data, moon phase graph) world time 29 times zones (48 cities), city code display, daylight saving on/off 4 multi-function alarms and 1 snooze alarm hourly time signal countdown timer 1/100 second stopwatch measuring capacity 99959'59.99" button operation tone on/off auto calendar (pre-programmed until the year 2099) 12/24 hour formats accuracy +/- 15 seconds per month 200m water resistant size of case/total weight g7900 52.4 x 50.0 x 17.7mm/68.2g