Features: case / bezel material: resin resin strap mineral crystal analog digital display shock resistant led light super illuminator world time 31 time zones (48 cities + utc) 1/100-second stopwatch stopwatch with target time alarm countdown timer 5 daily alarms (with 1 snooze alarm) hourly time signal full auto-calendar (to year 2099) 12/24-hour format button operation tone on/off regular timekeeping hand shift feature accuracy: ±15 seconds per month day display solid case back buckle clasp 200m water resistance approximate case diameter: 57.5mm approximate case thickness: 18.4mm