Features: resin case silicone strap solar quartz movement mineral crystal silver dial analog digital display world time neobrite double led light low temperature resistant time calibration signals digital compass altimeter barometer thermometer 1/100 second stopwatch countdown timer 5 daily alarms hourly time signal full automatic calendar day and date display 12/24 hours display am/pm display accuracy: ±15 seconds per month screwed case back buckle clasp 100m water resistance approximate case diameter: 47mm approximate case thickness: 13mm